Marat Mubinovich Safin is a Russian former world No. 1 tennis player and former politician. Nicknamed 'Safinator', he achieved the Association of Tennis Professionals (ATP) top singles ranking on 20 November 2000. Safin began his professional tennis career in 1997, and held the No. 1 ranking for a total of nine weeks between November 2000 and April 2001. When Safin became the world's number one player in 2000, he became the youngest world number one in the ATP era of tennis. He won his first major title at the 2000 US Open, defeating Pete Sampras in the final, and his second at the 2005 Australian Open, defeating Lleyton Hewitt in the final. Safin helped lead Russia to Davis Cup victories in 2002 and 2006. Despite his dislike of grass courts, he became the first Russian man to reach the Wimbledon semifinals in 2008.
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.
Joachim Johansson is a former professional male tennis player from Sweden. He reached the semifinals of the 2004 US Open, won 3 singles titles and achieved a career-high singles ranking of World No. 9 in February 2005.
Kenneth Carlsen is a Danish former professional tennis player, who was active between 1992 and 2007. Carlsen played left-handed with a one-handed backhand. His greatest asset was his powerful serve, and his game was therefore best suited to fast surfaces. For most of his long career, Carlsen was Denmark's best tennis player, and consistently among the few Danish players playing at the highest international level. He was awarded as best Danish "Tennis Player of the Year" seven times by the Danish Tennis Federation. Two times the award went to the Danish Davis Cup team, of which Kenneth Carlsen until 2003 was a central part.
Victor Hănescu is a Romanian former professional tennis player. His career-high singles ranking was world no. 26.
Noam Okun is an Israeli retired professional tennis player.
Frank Russell Dancevic is a retired Canadian professional tennis player. He first became the country's top singles player, according to ATP rankings, on February 10, 2003, as an 18-year-old, and remained so from January 30, 2006, until June 20, 2010. Dancevic has reached two ATP singles finals, the quarterfinals of the 2007 Montreal Masters and achieved a career-high singles ranking of world No. 65 in September 2007.
Karol Beck is a male former tennis player from Slovakia, who turned professional in 2001. His career-high singles ranking is World No. 36, achieved in August 2005. Beck reached the fourth round of the 2004 US Open and the quarterfinals of the 2005 Montreal Masters, defeating Nikolay Davydenko en route to both runs.
Andreas Seppi is an Italian former professional tennis player. He reached a career-high singles ranking of world No. 18 on 28 January 2013. He became the first Italian to win a title on all three surfaces.
Giovanni Lapentti Gómez is a retired Ecuadorian tennis player. His brother is Nicolás Lapentti, another professional tennis player, while a third brother, Leonardo, has also been active at the lower levels of professional tennis.
Juan Mónaco, nicknamed "Pico", is an Argentine former professional tennis player. He won nine singles titles, reached the semifinals of the 2010 Shanghai Masters and the 2012 Miami Masters, and achieved a career-high singles ranking of world no. 10 in July 2012. He announced his retirement from professional tennis on 15 May 2017.
Amer Delić is a Bosnian American former professional tennis player. He is a former captain and member of the Bosnia and Herzegovina Davis Cup team.
Rui Machado is a Portuguese retired professional tennis player who is regarded as one of the best Portuguese players of all time. In October 2011, he achieved a career-high singles world ranking at 59, at the time the highest ranking a Portuguese player had ever held.
Marius Copil is a Romanian professional tennis player playing on the ATP World Tour and ATP Challenger Tour. He is a member of the Romanian Davis Cup team. Copil is known for his extremely fast, powerful, and consistent serve.
Julio Leonardo Peralta Martínez is an inactive professional tennis player from Chile. Peralta has found success in the late stage of his career, reaching no. 29 in the ATP rankings in doubles. He captured six doubles titles at ATP World Tour and one singles challenger title. He went on hiatus from 2005 to 2007, from 2009 to 2011, from 2012 to 2014 and from 2018 to 2022.
Louk Sorensen is an Irish former professional tennis player.
The 2013 ATP World Tour was the global elite professional tennis circuit organized by the Association of Tennis Professionals (ATP) for the 2013 tennis season. The 2013 ATP World Tour calendar comprises the Grand Slam tournaments, the ATP World Tour Masters 1000, the ATP World Tour 500 series, the ATP World Tour 250 series, the Davis Cup and the ATP World Tour Finals. Also included in the 2013 calendar is the Hopman Cup, which was organized by the ITF and does not distribute ranking points.
Ivan Cerović is a former professional tennis player from Croatia.
Adam Chadaj is a professional tennis player from Poland.
Bart Beks is a retired Dutch professional tennis player.
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