Ilie Theodoriu Năstase is a Romanian former world No. 1 tennis player. He held the top singles spot from 23 August 1973 to 2 June 1974, and was the first man to hold the position on the computerized ATP rankings. Năstase is one of the 10 players in history who have won over 100 total ATP titles, with 64 in singles and 45 in doubles. Năstase won seven major titles: two in singles, three in men's doubles and two in mixed doubles. He also won four Masters Grand Prix year-end championship titles. He was the first professional sports figure to sign an endorsement contract with Nike, doing so in 1972. Năstase wrote several novels in French in the 1980s, and was inducted into the International Tennis Hall of Fame in 1991.
Daniele Bracciali is an Italian former tennis player, best ranked world no. 21 in doubles. His career-high ATP singles ranking is world no. 49, achieved in May 2006. In doubles, he reached the semifinals of the 2012 French Open and the quarterfinals of the 2013 Australian Open. In mixed doubles, he reached the semifinals of the 2012 Australian and French Opens.
Potito Starace is an Italian former professional tennis player on the ATP Tour. He achieved a career-high singles ranking of world no. 27 on October 15, 2007. He was a clay court specialist, and was coached by Umberto Rianna.
Marc Fornell Mestres is a professional tennis player from Spain. He has captured two ATP Challenger Series/Tour titles. Fornell Mestres's career-high ATP singles entry ranking is World No. 236, achieved on 19 November 2007.
Daniel Köllerer is a former professional tennis player from Austria who turned professional in 2002 and was given a lifetime ban in 2011 for match fixing.
João Olavo Soares de Souza is a Brazilian former professional tennis player. Before receiving a lifetime ban for match-fixing, Souza competed mainly on the ATP Challenger Tour, both in singles and doubles. He reached his highest ATP singles ranking, No. 69, on April 6, 2015, and his highest ATP doubles ranking, No. 70, on January 7, 2013. Souza was coached by former Brazilian player Ricardo Acioly. Souza is also known as "Feijão".
Aleksandrina Naydenova is a Bulgarian former professional tennis player.
Daniel Garza is a Mexican professional tennis player.
Maxime Authom is a Belgian tennis player playing on the ATP Challenger Tour.
Marco Trungelliti is an Argentine professional tennis player and competes mainly on the ATP Challenger Tour and ITF Futures, both in singles and doubles. On 4 March 2019, Trungelliti achieved his best singles rankings of world number 112. On 1 April 2013, he peaked at world number 174 in the doubles rankings.
Enrique López Pérez is a Spanish professional tennis player playing on the ATP Challenger Tour. On 16 July 2018, he reached his highest ATP singles ranking of 154 and his highest doubles ranking of 135 was achieved on 15 April 2019.
Karim Hossam is an Egyptian banned former professional tennis player. Hossam had a career-high ATP singles ranking of 337 achieved in September 2013. Hossam won 4 ITF events on the Futures circuit. He made his ATP main draw debut at the 2014 Qatar ExxonMobil Open, losing to the 5th seed Richard Gasquet 5–7, 1–6 in the first round. Hossam was banned from tennis for life and was fined $15,000 on 3 July 2018 for multiple match-fixing offences, after being found guilty on 16 corruption charges relating to offenses from 2013 to 2017 at ITF Futures tournaments. His younger brother Youssef Hossam was likewise banned from tennis for life, two years later, after he similarly was found guilty of 21 match-fixing and other corruption offences.
Constant Lestienne is a French professional tennis player. He reached his highest ATP singles ranking of World No. 48 on 6 February 2023 and his highest doubles ranking of World No. 250 was achieved on 12 June 2023. He has won eight ATP Challenger singles titles. In addition, he has won five singles titles and three doubles titles on the ITF Circuit.
Nicolás Kicker is an Argentine tennis player. He plays mainly on the ATP Challenger Tour. Kicker achieved his highest career singles ranking of 78 in June 2017. He has won 4 singles titles, and 1 doubles title on the ATP Challenger Tour, but also 14 singles titles, and 7 doubles titles on the ITF Men's Circuit.
Youssef Hossam is an Egyptian former professional tennis player who was banned from tennis for life, after he was found guilty of 21 match-fixing and other corruption offences. He was banned in a decision made official 4 May, after a hearing held 9-11 March 2020.
Sanjar Fayziev is an Uzbekistani tennis player.
Andrey Kumantsov is a former professional tennis player from Russia.
The issue of match fixing in tennis is an ongoing problem. First reported on by The Sunday Telegraph in 2003, an organisation called the Tennis Integrity Unit was set up in 2008 following an investigation into the problem. In 2011, Daniel Köllerer became the first player to receive a lifetime ban from the sport due to match fixing. Later that year, the organisers of the Wimbledon tournament were provided a list of people suspected of involvement in the issue. In 2016 the BBC reported on "evidence of widespread suspected match-fixing at the top level of world tennis, including at Wimbledon", and in February 2019 the BBC said that tennis was a "sport riddled with corruption".
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.
