Lleyton Glynn Hewitt is an Australian former world No. 1 tennis player. He is the most recent Australian man to win a major singles title, at the 2001 US Open and 2002 Wimbledon Championships. In November 2001, Hewitt became, at the time, the youngest man to reach No. 1 in the ATP singles rankings, at the age of 20 years, 8 months and 26 days. In total, he won 30 singles titles and 3 doubles titles, including the 2000 US Open men's doubles title, back-to-back Tour Finals titles in 2001 and 2002, and the Davis Cup with Australia in 1999 and 2003. Between 1997 and 2016, Hewitt contested a record twenty consecutive Australian Open men's singles tournaments, his best result being runner-up in 2005. He was also the runner-up at the 2004 US Open.
Gregory Rusedski is a British-Canadian former professional tennis player. He was the British No. 1 in 1997, 1999 and 2006, and reached the ATP ranking of world No. 4 for periods from 6 October 1997 to 12 October 1997 and from 25 May 1998 to 21 June 1998.
Robert Louis Ginepri is an American former professional tennis player. He won three ATP singles titles in his career and achieved a career-high ranking of World No. 15 in December 2005. Ginepri's best Grand Slam result was the semifinals of the 2005 US Open, where he lost to Andre Agassi.
Ivo Karlović is a Croatian former professional tennis player. His height of 211 cm makes him the joint tallest ranked tennis player in history, along with Reilly Opelka. He won eight ATP Tour singles titles between 2007 and 2016. He is a serve-and-volleyer and officially held the record for the fastest serve recorded in professional tennis, measured at 251 km/h (156 mph), before being surpassed unofficially by Samuel Groth in 2012, and officially by John Isner in 2016. In his prime, he was considered one of the best servers on tour, and held the record for career aces from 1991 onwards with 13,728 before the record was broken by Isner on July 1 2022. This makes him one of only five players since 1991 to surpass 10,000 aces. His height enabled him to serve with high speed and unique trajectory.
Thomas Mario Haas is a German former professional tennis player. He competed on the ATP Tour from 1996 to 2017. After breaking into the world top 100 in 1997 and reaching a career-high singles ranking of world No. 2 in May 2002, his career was interrupted by injuries: Haas twice dropped out of the world rankings due to being unable to play for twelve months. His first period of injury saw him miss the whole of the 2003 season, and he did not return to the world's top 10 until 2007. He also was absent between February 2010 and June 2011, but returned to world No. 11 in 2013 by reaching the quarterfinals at the French Open for the first time. Haas reached the semifinals of the Australian Open three times, and in Wimbledon once. He reached the quarterfinal stage of each of the major events. He won 15 career titles in singles, including a Masters title at the 2001 Stuttgart Masters, and a silver medal from the 2000 Summer Olympics.
Feliciano López Díaz-Guerra is a Spanish former professional tennis player. He achieved his career-high singles ranking of world No. 12 in March 2015 and doubles ranking of world No. 9 in November 2016. In 2005, López was the first male Spanish tennis player to reach the quarterfinals of Wimbledon since 1972. He repeated the feat in 2008 and 2011. López defeated Tim Henman at the 2007 Wimbledon second round. He reached the quarterfinals of the 2015 US Open, and won his first Grand Slam title at the 2016 French Open when he won the men's doubles title with Marc López. In 2017, at the age of 35, López won the Aegon Championship at The Queen's Club, London, beating Marin Čilić in a third set tiebreak. He distinguished himself by winning his ATP titles, both in singles and doubles, on all surfaces, hard, grass and clay. During the 2018 Wimbledon Championships, López made his 66th consecutive Grand Slam main draw appearance, surpassing the previous record of 65 consecutive appearances held by Roger Federer. At the 2022 Australian Open, his record reached 79 consecutive Grand Slam appearances. As of 2022 Wimbledon, he shares the record for most Grand Slam appearances with Federer at 81. He has made 21 consecutive French Open appearances, also a record. López also holds the record for most losses on the ATP Tour, with 490. On 22 June 2021, he achieved 500 match wins at the 2021 Mallorca Championships, putting him No. 10 on the list of active players with over 500 match wins. On 13 July 2021 at the 2021 Hamburg European Open, he became the fifth player in the world to reach 10,000 aces on the most aces in career list. With his direct entry in the 2021 Indian Wells, he broke the record with his 139th participation in events in the Masters 1000 category.
John Robert Isner is an American former professional tennis player. He was ranked as high as world No. 8 in singles and No. 14 in doubles by the Association of Tennis Professionals (ATP). Considered one of the best servers ever to play on the ATP Tour, Isner achieved his career-high singles ranking in July 2018 by virtue of his first Masters 1000 crown at the 2018 Miami Open and a semifinal appearance at the 2018 Wimbledon Championships. He also twice reached the quarterfinals at the US Open in 2011 and 2018, the latter of which helped qualify him for an ATP Finals appearance later that year. At the 2010 Wimbledon Championships, he played the longest professional tennis match in history, requiring five sets and 183 games to defeat Nicolas Mahut in a match which lasted 11 hours and 5 minutes, and was played over the course of three days. Isner holds the record for hitting the ATP's fastest "official" serve ever and third-fastest on record in tennis at 157.2 mph or 253 km/h during his first-round 2016 Davis Cup match. He has the most aces in the history of the ATP Tour, having served 14,470, as of August 31, 2023. Isner retired from professional tennis following the 2023 US Open.
Dustin Brown is a German-Jamaican professional tennis player who rose to fame after beating Rafael Nadal at the Halle Open in 2014 and at Wimbledon in 2015. He is known for his technique, speed, and unorthodox playing style, often entertaining the crowd with trick shots. His nickname is "Dreddy" due to his distinctive long dreadlocked hair.
Jerzy Filip Janowicz Jr. is a Polish inactive professional tennis player and padel player. Janowicz is best known for becoming the first Polish man to reach a major semifinal, at the 2013 Wimbledon Championships. Noted for his very powerful serve, Janowicz can hit at up to 249 km/h (155 mph) along with strong groundstrokes. Despite never winning an ATP Tour title, Janowicz obtained a career-high world ranking of No. 14 in August 2013. He was awarded the Gold Cross of Merit by Polish President Bronisław Komorowski in 2013 for his achievements. Having finished as runner-up at two junior major tournaments, Janowicz rose to prominence on the pro circuit leading up to and following his run to the final, as a qualifier, of the 2012 Paris Masters, during which he defeated five top-20 players such as Andy Murray and Janko Tipsarević. Despite losing to David Ferrer in the finals, he made his top-30 debut in the ATP rankings and became the highest-ranked male Polish tennis player.
Robert Charbel Farah Maksoud is a Colombian former professional tennis player. A world No. 1 in doubles, he also reached a career-high singles ranking of No. 163 in June 2011.
Tatsuma Ito is a Japanese professional tennis player. He has won 7 Challenger tournaments and achieved a career-high singles ranking of World No. 60 in October 2012.
Jiří Veselý is a Czech professional tennis player. He reached a career-high singles ranking of World No. 35 on 27 April 2015.
Luis-Enrique Herrera is a Mexican former professional tennis player.
Ben Ellwood is a former professional tennis player from Australia.
Guido Pella is an Argentine former professional tennis player. In August 2019, Pella reached his career best world No. 20 in singles. In July 2019, he peaked at No. 55 in doubles.
Jonathan Canter is a former professional tennis player from the United States.
Michael Walker is a former professional tennis player from Wales who competed for Great Britain and Hong Kong.
James Turner is a former professional tennis player from England who competed for Great Britain.
Raymundo Deyro was a tennis player from the Philippines.
The 2017 ATP Finals (also known as the 2017 Nitto ATP Finals for sponsorship reasons) was a men's tennis tournament played at the O2 Arena in London, United Kingdom, from 12 to 19 November 2017. It was the season-ending event for the highest-ranked singles players and doubles teams on the 2017 ATP World Tour.
Great Britain 
