Doping in tennis

Last updated

The practice of doping in tennis involves the use of prohibited, performance-enhancing substances listed by the International Tennis Federation (ITF) and World Anti-Doping Agency (WADA). [1] The practice is considered unsportsmanlike and unethical, with punishments for such offences ranging from official warnings to career bans, depending on the severity of the offence. [2]

Contents

Widespread illegal substance abuse in tennis developed during the 1980s and 1990s as performance-enhancing substances became increasingly available in professional sport. The detection and punishment for the use of drugs in this period was aided by the takeover of policing drug cheating by the International Tennis Federation in 1993. [3]

History

Anti-doping policy within tennis primarily developed from the 1980s with the increased prevalence of recreational drugs and steroid use among athletes across various sporting professions.

According to the International Tennis Federation (ITF), the Men's Tennis Council began drug testing in the late 1980s. [3] The drug testing program that was administered by the Men's Tennis Council targeted recreational drugs such as cocaine, methamphetamine and marijuana, before the creation of the ATP Tour in 1990 marked an official transition towards performance-enhancing drug regulation.

From 1993, the Women's Tennis Association (WTA World Tour), Association of Tennis Professionals (ATP World Tour) and International Tennis Federation (ITF) led a combined anti-doping initiative in professional tennis. [3]

Following the joint initiative between the ATP and WTA, the International Tennis Federation (ITF) became the sole governing body for professional tennis anti-doping initiatives in 2007, as the Association of Tennis Professionals (ATP World Tour) and Women's Tennis Association (WTA World Tour) moved towards a player-focused organisation and administrative role. [3] Other bodies that regulate doping within tennis on a national level include the United States Anti-Doping Agency.

Doping in men's tennis

Cases on the ATP Tour include:

Andre Agassi (1997)

Andre Agassi (2006) Andre Agassi Indian Wells 2006.jpg
Andre Agassi (2006)

In 1997, Andre Agassi returned a positive drug test for the use of methamphetamine. A joint investigation carried out by the World Anti-Doping Agency (WADA) and Association of Tennis Professionals (ATP World Tour) handed down a three-month suspension from professional tennis for the incident. However, the punishment was not formally handed down after Agassi blamed the positive result on a spiked drink.

Agassi's case was revisited in 2009 following the publication of Agassi's autobiography, Open: An Autobiography, where Agassi admitted to lying about the cause of his positive drug test result. Agassi admitted that he became addicted to methamphetamine during 1997 after his assistant introduced him to the drug and he faced both personal and professional problems. [4]

Following the admission, no formal case has been opened against Agassi as the offence was committed prior to the establishment of the World-Anti Doping Agency in 1999 and the International Tennis Federation's (ITF) formal takeover of the ATP World Tour's anti-doping program since 2007. [4]

Richard Gasquet (2009)

In 2009, Richard Gasquet returned a positive drug result for cocaine use. Gasquet denied intentional use of the drug, citing that he may have been exposed to the substance after kissing a female at a Miami nightclub (known in the media as "The Cocaine Kiss Controversy"). [5]

Richard Gasquet (2015) Richard Gasquet (19049021379).jpg
Richard Gasquet (2015)

The International Tennis Federation (ITF) and the World Anti-Doping Agency were initially seeking a two-year ban because of the substance used in the incident. Due to Gasquet's denial, and the small amount of cocaine detected, Gasquet initially received a one-year ban. However, this was overturned following an independent review that found the case was unintentional. [6] The ITF and WADA challenged the ruling in the Court of Arbitration for Sport but were unsuccessful.

Consequently, Gasquet received a formal six-week ban that came into effect in May 2009 to July 2009, which prevented him from competing in the French Open or Wimbledon. During this period his professional ranking fell nine places. [5] This was the only punishment enforced by governing authorities, with no prize money fine or forfeiture of ranking being imposed. An independent tribunal ruled that Gasquet had not intentionally consumed the substance, that it was not performance-enhancing, and that he would have consumed the bare minimum amount to be detected. [7]

In January 2010, the Court of Arbitration for Sport found Gasquet not guilty of a doping offence and he returned to professional tennis following the ban at the Australian Open in 2010. [8]

Marin Čilić (2013)

In 2013, Marin Čilić returned a positive drug test for the substance nikethamide. The drug is a widely used stimulant that affects respiratory function through the increase in blood flow and oxygen intake within the body. [9]

Marin Cilic (2015) Marin Cilic (18697958020).jpg
Marin Čilić (2015)

Čilić denied having deliberately taken the drug, stating that the substance was contained in glucose tablets that were purchased from a pharmacy while he was competing in France. [10] The International Tennis Federation (ITF) recognised Cilic's claim and did not hand down the regular two-year professional ban for instances of illegal doping. Instead, he received a nine-month ban due to the low level of the drug that was detected and the contextual circumstances.

The initial ban would have prevented Čilić from competing in the 2013 US Open and the 2014 Australian Open with the suspension period extending from May 1, 2013, to January 31, 2014. [10] However, following a successful appeal to the Court of Arbitration for Sport, Čilić's nine-month ban was reduced to four months, with a retrospective provisioning period recognising time already spent away from the game. The ruling also resulted in the return of Čilić's prize money and ATP World Tour points from the 2013 French Open, 2013 Wimbledon and 2013 BMW Open where he tested positive to nikethamide. [11]

Cilic returned to the professional tennis circuit on 25 October 2013. [11]

Viktor Troicki (2013)

Victor Troicki (2011) Victor Troicki, Boodles.jpg
Victor Troicki (2011)

In 2013, Viktor Troicki refused to partake in a mandatory blood test carried out by the International Tennis Federation (ITF). As part of the 2013 anti-doping program administered by the governing body, it is compulsory that when requested by ITF staff, that players provide in and/or out-of-competition blood and urine testing. [12] While it is possible for players to ask to be excused from such test, it is at the discretion of the ITF to postpone such tests.

Troicki stated he did not agree to the blood test as he was sick when the test was ordered by the ITF, however, he did provide the mandatory urine sample. [13] In conjunction with his illness, Troicki also suffers from a phobia of needles that makes such tests difficult to administer. [14] Having refused Troicki's claim, the ITF handed down an 18-month ban due to the failure to comply with the organisations anti-doping regulations. [15] The initial ban prevented Troicki from competing professionally on the ITF Challenger or ATP World Tour from 26 July 2013 until 24 January 2015, missing the 2013 US Open, all the 2014 Grand Slams and 2015 Australian Open. [16] The punishment also enforced the forfeiture of all ATP World Tour points and prize money received at the 2013 Monte Carlo Masters tennis tournament where he refused to participate in the blood test.

Troicki appealed the sentence to the Court of Arbitration for Sport in October 2013 and was successful in having his ban reduced by 6 months from 18 to a total 12-month ban. The new sentence prevented Troicki from competing professionally from 26 July 2013 to 26 July 2014 with the sentence recognising time already spent suspended from the game. [17]

Troicki returned to professional tennis in July 2014 at a world ranking of 847 that prevented him from returning to the ATP World Tour. He returned to tournaments on the International Tennis Federation's Challenger circuit. [18]

Jannik Sinner (2024)

Jannik Sinner (2023) Sinner MCM23 (8) (52883593853).jpg
Jannik Sinner (2023)

In 2024, Jannik Sinner returned two positive drug tests for the use of anabolic steroid clostebol, a prohibited substance which is very popular in Italian sport. [19] Following ITIA consultation with scientific experts, no significant suspension was handed down and Sinner was allowed to continue to play throughout the season. The Report [20] stated that Sinner's physiotherapist Giacomo Naldi treated a cut on his finger with a spray named "Trofodermin" that contained clostebol and with an anti-doping warning sign on its box, and shortly afterward gave Sinner bare-handed massages, allowing the steroid to enter his bloodstream and contaminate his system. An independent tribunal was held and ruled Sinner and his team of "no fault or negligence". [21] [22] A month after the scandal reported, the WADA confirmed an appeal to CAS on the Sinner's case. They found that Sinner's "no fault or negligence" was not correct under the applicable rules, and asked for a suspension of one to two years. [23]

Doping in women's tennis

Examples in WTA Tour include:

Martina Hingis (2007)

Martina Hingis (2014) Martina Hingis (16200359560).jpg
Martina Hingis (2014)

In 2007, Martina Hingis tested positive to the drug benzoylecgonine, a substance that has traces to cocaine. [24] The International Tennis Federation (ITF) gave Hingis a two-year suspension from professional tennis that began on 1 October 2007 in conjunction with a forfeiture of her world ranking and a fine exceeding $120,000. Hingis challenged the ruling, however, this was refused by the ITF as she had already announced a retirement from the sport. [25]

Hingis maintained her innocence stating she had never used cocaine and subsequently carried out a private drug test which returned a negative result. [24] Despite the disparity in results, Hingis retired from professional tennis for the second time and did not formally challenge the ruling.

Hingis later returned to tennis in 2013, and attained the world number one ranking on the WTA women's doubles circuit.

Barbora Záhlavová-Strýcová (2013)

Barbora Zahlavova-Strycova (2010) Barbora Strycova (18262949433).jpg
Barbora Záhlavová-Strýcová (2010)

In 2013, Barbora Záhlavová-Strýcová tested positive to the banned stimulant, sibutramine while competing at the 2013 Luxembourg Open. [26] The drug is primarily used for weight loss with its effects on human metabolic function. The substance is widely prescribed to sufferers of obesity and diabetes with the main effect of the drug being an appetite suppressant. [27] The drug was added to the World Anti-Doping Agency's banned substance list in 2012.

Záhlavová-Strýcová stated she did not deliberately ingest the drug to lose weight or cheat in competition, but did admit to using a weight-loss supplement Acai Berry Thin which has the substance as one of the ingredients. [26] The International Tennis Federation (ITF) recognised that Zhalavova Strýcová did not intentionally take the drug for the benefit of her professional game and thus did not hand down the maximum two-year ban for illegal doping, however, she did receive a six-month ban from professional tennis. [28] In conjunction with the suspension of play, Zhalavova Strýcová was also forced to forfeit all WTA Tour points and prize money from the 2012 Luxembourg Open and 2012 Buschl Open when the substance was in her body. The ban prevented Záhlavová-Strýcová competing from 16 October 2012 until 16 April 2013, ruling her out of the 2013 Australian Open. [28]

Maria Sharapova (2016)

Maria Sharapova (2015) Maria Sharapova (18414105341).jpg
Maria Sharapova (2015)

In 2016, Maria Sharapova confessed to failing a WADA drug test while playing at the Australian Open in 2016. [29] The substance used was a drug named meldonium that is used to treat heart disease with its effects on blood circulation through the transfer of fatty acids into the human body. [30] Sharapova maintained there was no wrongdoing on her behalf, having admitted to using the prescription based drug for over ten years due to her susceptibility to influenza, treatment for symptoms of diabetes and magnesium deficiency. [31]

On 1 January 2016, the drug was placed on the International Tennis Federation's banned substance list as it was ruled to have performance-enhancing effects. [32] Such effects include increased blood circulation through the greater intake of oxygen that enables increased exercise ability and a reduced recovery period. [33]

A report handed down by the International Tennis Federation and World Anti-Doping Agency found that while Sharapova may not have been consciously using the substance to increase performance, it is the responsibility of the player and team to be aware of new additions to the banned substance list. [29] As a result, Sharapova was initially issued a two-year ban by the ITF that prevented her from competing professionally on the WTA World Tour until 25 January 2018. [29]

Following an investigation by the Court of Arbitration for Sport in October 2016, Sharapova's ban was reduced from two years to 15 months after it was found there was no intention to cheat and no significant fault on her behalf. [31] The ruling enabled Sharapova to return to competitive tennis on April 26, 2017. [34]

During her ban Sharapova wrote her memoir, Unstoppable: My Life So Far, that was published in June 2018. [35]

Sharapova returned to grand slam tennis at the 2018 US Open through a wildcard entry. She made it to the fourth round before losing to Anastasija Sevastova. [36]

Simona Halep (2018) Halep RG18 (25) (42929445712).jpg
Simona Halep (2018)

Simona Halep (2022)

Simona Halep is a Romanian tennis player who has won two Grand Slam titles and reached the world number one ranking in 2017. She was suspended from playing tennis after testing positive for a banned substance. In October 2022, she was notified by then nascent International Tennis Integrity Agency (ITIA) that she tested positive for Roxadustat, an anti-anaemia drug that stimulates the production of red blood cells, at the US Open in September. She is provisionally suspended pending a hearing where she hoped to prove her innocence. She says she has evidence that she was contaminated by a supplement that contained Roxadustat. [37]

The subsequent year in May she was charged with a second doping offence by the ITIA over “irregularities” in her biological passport (ABP), which monitors blood indicators over time. Following this, Halep accused the ITIA of requesting a third delay to her hearing and violating her rights to a quick and fair process. Halep says she is “devastated” and “spiraling” over her doping case and claims the ITIA is “killing” her reputation. [38]

On 12 September 2023, the ITIA suspended Halep for a period of four years, backdated to her initial suspension on 6 October 2022. [39] Halep would appeal the ban to the Court of Arbitration for Sport (CAS). On 5 March 2024, CAS reduced Halep’s sentence to nine months, which she had already served. [40] Halep was cleared for immediate return from suspension and would return to tennis at the 2024 Miami Open. [41]

List of banned substances

Banned anabolic steroid canisters. Rawdealsteroids4.jpg
Banned anabolic steroid canisters.

The list of banned substances in tennis as it stands in 2018 has been published by the International Tennis Federation (ITF). The prohibited substance list is categorised into the following:

List of banned doping methods

Example of blood samples stored and later re-injected into players bodies to increase red blood cell levels. Tube with blood sample.jpg
Example of blood samples stored and later re-injected into players bodies to increase red blood cell levels.

In addition to the publication of an official list of banned substances, the International Tennis Federation (ITF) has published a list of banned practices that are considered acts of illegal doping within tennis.

While it is not recognised as a doping method, the un/intentional avoidance or missed drug test carried out by the ITF or other anti-doping body is also recognised as a type of doping offence. While the player may not have banned substances within their system, a missed test can result in a ban from professional competition of up to two years. [51]

Controversies surrounding anti-doping policy

Anti-doping policy remains controversial due to the large amount of substances, ingredients and chemicals that athletes are prohibited from being exposed to. [52]

Controversy surrounds inadvertent cases of doping, such as those by Richard Gasquet (The Cocaine Kiss Controversy) [53] and Maria Sharapova (long used drug added to the prohibited list without knowledge). [54] While in both cases these players were ruled not to be at fault, the strict measures led to legal battle and damage to players reputation. [54]

Another controversy surrounding doping policy is the strict times at which testing can be carried out that players must hold themselves to or face potential repercussions, as seen with Viktor Troicki in 2013. [55]

Further controversy revolved around Jannik Sinner who was allowed to continue to compete despite his two separate failed tests for the anabolic steroid clostebol. Several players spoke out against perceived double standards and preferential treatment. [56]

See also

Related Research Articles

<span class="mw-page-title-main">Maria Sharapova</span> Russian tennis player (born 1987)

Maria Yuryevna Sharapova is a Russian former world No. 1 tennis player. She competed on the WTA Tour from 2001 to 2020 and was ranked world No. 1 in singles by the Women's Tennis Association (WTA) for 21 weeks. She is one of ten women to achieve the career Grand Slam. She is also an Olympic medalist, having won silver in women's singles at the 2012 London Olympics. She has been considered as one of the best tennis competitors of her generation.

<span class="mw-page-title-main">Mariano Puerta</span> Argentine tennis player

Mariano Rubén Puerta is an Argentine former professional tennis player. He reached a career-high ATP world No. 9 singles ranking in August 2005. His career highlight of reaching the final of the French Open in 2005 was marred by testing positive for the banned substance etilefrine in a drugs test directly after the French Open final, for which he received an eight-year doping ban.

<span class="mw-page-title-main">Nikethamide</span> Chemical compound

Nikethamide is a stimulant which mainly affects the respiratory cycle. Widely known by its former trade name of Coramine, it was used in the mid-twentieth century as a medical countermeasure against tranquilizer overdoses, before the advent of endotracheal intubation and positive-pressure lung expansion. It is no longer commonly considered to be of value for such purposes.

<span class="mw-page-title-main">Marin Čilić</span> Croatian tennis player (born 1988)

Marin Čilić is a Croatian professional tennis player. His career-high singles ranking is world No. 3, achieved on 28 January 2018. Alongside compatriot Goran Ivanišević, Čilić is widely considered to be one of the greatest Croatian tennis players in history.

<span class="mw-page-title-main">Clostebol</span> Anabolic steroid

Clostebol usually as the ester clostebol acetate, is a synthetic anabolic–androgenic steroid (AAS). Clostebol is the 4-chloro derivative of the natural hormone testosterone. The chlorination prevents conversion to dihydrotestosterone (DHT) while also rendering the chemical incapable of conversion to estrogen. Although usually used as an ester including clostebol acetate, clostebol caproate (Macrobin-Depot), or clostebol propionate (Yonchlon), unmodified/non-esterified clostebol is also reported to be marketed, under the brand name Trofodermin-S in Mexico.

<span class="mw-page-title-main">Viktor Troicki</span> Serbian tennis player (born 1986)

Viktor Troicki is a Serbian former professional tennis player. He won his first ATP singles title at the 2010 Kremlin Cup, and his second and third ATP singles titles at the 2015 and 2016 Apia International Sydney. His biggest achievements were a career-high singles ranking of world No. 12 and winning the deciding rubber in Serbia's Davis Cup final against France in 2010. Since then, in every Davis Cup he attended, he has contributed to Serbia reaching a quarterfinal or better. He is known for serving a 12-month ban for an anti-doping rule violation in 2013–14 for missing a blood test. By winning the inaugural ATP Cup in 2020, Troicki became the first player in tennis Open Era history to win all three major team competitions. In December 2020, Troicki was appointed captain of the Serbian team for the Davis Cup and ATP Cup.

<span class="mw-page-title-main">Meldonium</span> Chemical compound

Meldonium is a limited-market pharmaceutical, developed in 1970 by Ivars Kalviņš at the USSR Latvia Institute of Organic Synthesis, and now manufactured by the Latvian pharmaceutical company Grindeks and several generic manufacturers. It is primarily distributed in Eastern European countries as an anti-ischemia medication.

The 2013 Rogers Cup presented by National Bank was a tennis tournament played on outdoor hard courts. It was the 124th edition and the 112th of the Canadian Open, and was part of the ATP World Tour Masters 1000 of the 2013 ATP World Tour, and of the WTA Premier 5 tournaments of the 2013 WTA Tour. The men's event was held at the Uniprix Stadium in Montreal, from August 3 to August 11 and the women's and legends events at the Rexall Centre in Toronto, from August 3 to August 11.

This page covers all the important events in the sport of tennis in 2014. It primarily provides the results of notable tournaments throughout the year on both the Association of Tennis Professionals and Women's Tennis Association Tours, the Davis Cup, and the Fed Cup.

<span class="mw-page-title-main">Kamil Majchrzak</span> Polish tennis player (born 1996)

Kamil Majchrzak is a Polish professional tennis player. He has a career high ATP singles ranking of World No. 75 achieved on 28 February 2022 and a career high ATP doubles ranking of World No. 241 achieved on 8 August 2016.

Angelique Kerber defeated defending champion Serena Williams in the final, 6–4, 3–6, 6–4 to win the women's singles tennis title at the 2016 Australian Open. It was her first major title. Kerber saved a match point en route to the title, in the first round against Misaki Doi; she became the first woman to win a singles major after saving a match point in the first round. She also became the first German to win a major since Steffi Graf at the 1999 French Open. Williams was attempting to equal Graf's Open Era record of 22 major singles titles. Williams' loss also ended her eight-match winning streak in major finals.

The 2016 Australian Open was a tennis tournament that took place at Melbourne Park between 18 and 31 January 2016. It was the 104th edition of the Australian Open, and the first Grand Slam tournament of the year. The tournament consisted of events for professional players in singles, doubles and mixed doubles play. Junior and wheelchair players competed in singles and doubles tournaments.

<span class="mw-page-title-main">Roxadustat</span> Anti-anemia medication

Roxadustat, sold under the brand name Evrenzo, is an anti-anemia medication. Roxadustat is a HIF prolyl-hydroxylase inhibitor that increases endogenous production of erythropoietin and stimulates production of hemoglobin and red blood cells. It was investigated in clinical trials for the treatment of anemia caused by chronic kidney disease (CKD). It is taken by mouth. The drug was developed by FibroGen, in partnership with AstraZeneca.

<span class="mw-page-title-main">International Tennis Integrity Agency</span> International tennis organisation

The International Tennis Integrity Agency (ITIA) is the organisation responsible for safeguarding the integrity of professional tennis worldwide. It is an upgraded version of Tennis Integrity Unit (2008–2020). It was established following a comprehensive review of integrity in the sport.

References

  1. ↑ "Prohibited List".
  2. ↑ "FAQ: Drug Testing and Doping In Tennis". Tennis.com. Retrieved 2018-09-30.
  3. 1 2 3 4 "History". ITF Tennis. Retrieved 11 April 2022.
  4. 1 2 Herman, Martyn. "Andre Agassi revelations leave sport in state of shock". Reuters. Retrieved 2018-09-23.
  5. 1 2 "Cocaine ban over, Gasquet cleared to return". ESPN.com. 2009-07-15. Retrieved 2018-09-23.
  6. ↑ Nakrani, Sachin (2009-12-17). "Richard Gasquet escapes ban after CAS clears him over positive cocaine test". The Guardian. Retrieved 2018-09-23.
  7. ↑ Scott, Matt (2009-08-04). "Cocaine kisses could come back to bite Richard Gasquet and ITF". The Guardian. Retrieved 2018-09-23.
  8. ↑ Hodgkinson, Mark (2010). "Australian Open 2010: Richard Gasquet glad to be putting cocaine scandal behind him". ISSN   0307-1235 . Retrieved 2018-09-23.
  9. ↑ Macarthur, J. G. (1953-03-07). "Effect of Nikethamide by Mouth in Man". British Medical Journal. 1 (4809): 547. doi:10.1136/bmj.1.4809.547. ISSN   0007-1447. PMC   2015555 . PMID   13019114.
  10. 1 2 "Cilic Is Suspended Nine Months for Doping". Associated Press. Retrieved 2018-09-23.
  11. 1 2 "Marin Čilić has doping ban reduced to four months by Court of Arbitration for Sport". Telegraph. 2013-10-25. ISSN   0307-1235 . Retrieved 2018-09-23.
  12. ↑ "2013 Testing Summary" (PDF). ITF Tennis. Retrieved 24 September 2018.
  13. ↑ "Viktor Troicki banned for 18 months for doping violation". BBC Sport. 2013-07-26. Retrieved 2018-09-23.
  14. ↑ "Back from Exile: Viktor Troicki Returns to Tennis". Tennis.com. Retrieved 2018-09-24.
  15. ↑ "Viktor Troicki banned for 18 months for doping violation". BBC Sport. 2013-07-26. Retrieved 2018-09-24.
  16. ↑ "Viktor Troicki banned for 18 months for failing to provide blood sample". The Guardian. Press Association. 2013-07-25. Retrieved 2018-09-24.
  17. ↑ Cox, David (20 July 2014). "BACK FROM EXILE: VIKTOR TROICKI RETURNS TO TENNIS". Tennis.com. Retrieved 24 September 2014.
  18. ↑ Cox, David. "BACK FROM EXILE: VIKTOR TROICKI RETURNS TO TENNIS". Tennis.com. Retrieved 24 September 2018.
  19. ↑ Willison, Edmund (2024-05-22). "Italy's Clostebol doping crisis across tennis, football and the Olympics". Honest Sport. Retrieved 2024-10-01.
  20. ↑ "ITIA - Independent tribunal rules 'No Fault or Negligence' in case of Italian player Jannik Sinner". ITIA. Retrieved 2024-10-01.
  21. ↑ Fendrich, Howard. "Sinner avoids ban despite positive tests for steroid Clostebol". Associated Press. Retrieved 2024-09-07.
  22. ↑ "Independent tribunal rules 'No Fault or Negligence' in case of Jannik Sinner" . Retrieved 2024-09-09.
  23. ↑ "WADA appeals case of tennis player Jannik Sinner". World Anti Doping Agency. 2024-09-28. Retrieved 2024-09-28.
  24. 1 2 Hodgkinson, Mark (2007-11-02). "Martina Hingis admits to positive cocaine test". ISSN   0307-1235 . Retrieved 2018-09-23.
  25. ↑ "Martina Hingis: A Teenage Sensation Marred By A Doping Ban That Turned Into A Doubles Icon – UBITENNIS". www.ubitennis.net. 2017-10-27. Retrieved 2018-09-23.
  26. 1 2 "Barbora Zahlavova-Strycova docked with 6-month doping ban for testing positive". SI.com. Retrieved 2018-09-24.
  27. ↑ "Sibutramine Uses, Side Effects & Warnings – Drugs.com". Drugs.com. Retrieved 2018-09-24.
  28. 1 2 Mason, Peter (2013-02-14). "Barbora Zahlavova-Strycova banned after testing positive for timulant". The Guardian. Retrieved 2018-09-24.
  29. 1 2 3 "Maria Sharapova banned for two years for failing drug test". ABC News. 2016-06-09. Retrieved 2018-09-22.
  30. ↑ Arduini, Arduino; Zammit, Victor A. (2016-08-01). "A tennis lesson: sharp practice in the science behind the Sharapova case". Postgraduate Medical Journal. 92 (1090): 429–430. doi:10.1136/postgradmedj-2016-134124. ISSN   0032-5473. PMC   4975811 . PMID   27252310.
  31. 1 2 "Maria Sharapova's doping ban cut from two years to 15 months". Tennis.com. Retrieved 2018-09-22.
  32. ↑ "What is meldonium and how does it affect the body?". ABC News. 2016-03-08. Retrieved 2018-09-22.
  33. ↑ "Effects of Meldonium on Athletes Are Hazy" . Retrieved 2018-09-23.
  34. ↑ "Maria Sharapova's doping ban cut from two years to 15 months –". Los Angeles Times. Associated Press. Retrieved 2018-09-23.
  35. ↑ Sharapova, Maria. "Unstoppable". www.penguin.co.uk. Retrieved 2018-09-23.
  36. ↑ "Maria Sharapova on returning to tennis after doping ban: 'It's time to move on'". ABC News. 2017-09-12. Retrieved 2018-09-23.
  37. ↑ "Simona Halep calls for emergency hearing after new evidence in doping case". GiveMeSport. 2022-12-06. Retrieved 2023-05-26.
  38. ↑ Carayol, Tumaini (2023-05-19). "Simona Halep, former world No 1, hit with second anti-doping charge". The Guardian. ISSN   0261-3077 . Retrieved 2023-05-26.
  39. ↑ "Independent Tribunal sanctions Simona Halep for Anti-Doping Rule Violations". ITIA. 2023-09-12. Retrieved 2023-09-13.
  40. ↑ "CAS clears Halep for immediate return after doping ban cut". 5 March 2024. Retrieved 20 March 2024.
  41. ↑ "Grand Slam champ Simona Halep wins doping case on appeal and is cleared to resume tennis". The Washington Post. March 5, 2024. Retrieved March 5, 2024.
  42. ↑ "Anabolic Steroids – Fact sheets". www.health.nsw.gov.au. Retrieved 2018-09-18.
  43. ↑ "Overview". ITF Tennis. Retrieved 18 September 2018.
  44. ↑ "EPO and other Peptide Hormones: BEEP BioEthics Education Project". www.beep.ac.uk. Retrieved 2018-09-30.
  45. ↑ Billington, Charlotte K.; Penn, Raymond B.; Hall, Ian P. (2016), β2 Agonists, Handbook of Experimental Pharmacology, vol. 237, Springer International Publishing, pp. 23–40, doi:10.1007/164_2016_64, ISBN   9783319521732, PMC   5480238 , PMID   27878470
  46. ↑ "S4 Hormone and metabolic modulators". Antidoping Switzerland. 2014-03-28. Retrieved 2018-09-22.
  47. ↑ Bahrke, Michael (2002). Performance-Enhancing Substances in Sport and Exercise. Human Kinetics. ISBN   0736036792.
  48. ↑ "What is Prohibited". World Anti-Doping Agency. Retrieved 2018-09-22.
  49. ↑ Kelland, Kate. "Substances and methods used in doping". U.S. Retrieved 2018-09-22.
  50. ↑ "Gene Therapy in Sports: Gene Doping | Learn Science at Scitable". www.nature.com. Retrieved 2018-09-22.
  51. ↑ "Serena Williams pushes back in strange drug testing controversy". New York Post. 2018-06-29. Retrieved 2018-09-30.
  52. ↑ Hon, Olivier de; Coumans, Bart (2007-11-01). "The continuing story of nutritional supplements and doping infractions". British Journal of Sports Medicine. 41 (11): 800–805. doi:10.1136/bjsm.2007.037226. ISSN   0306-3674. PMC   2465258 . PMID   17957017.
  53. ↑ Hodgkinson, Mark (2009-08-31). "US Open: Richard Gasquet puts 'Cocaine Kiss' saga behind him". ISSN   0307-1235 . Retrieved 2018-09-30.
  54. 1 2 "Maria Sharapova banned for two years for failing drug test". ABC News. 2016-06-09. Retrieved 2018-09-30.
  55. ↑ "Why Viktor Troicki was suspended for anti-doping violation". SI.com. Retrieved 2018-09-30.
  56. ↑ "Jannik Sinner's doping case and what players' reaction says about tennis". The Athletic. Retrieved 2024-09-07.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.