The Miami Open is a tennis tournament held at Hard Rock Stadium in Miami Gardens, Florida. It is part of the men's ATP Tour Masters 1000 circuit, and part of the women's WTA 1000 circuit. The Miami Open is usually held between March and April.
Donald Oliver Young Jr. is an American professional tennis and pickleball player with the American League PPA. Young had a career-high ATP singles ranking of World No. 38 achieved on 27 February 2012 and doubles ranking of No. 43 achieved on 14 August 2017. As a junior he was ranked No. 1 in the world in 2005. His best singles performance in the Grand Slams was reaching the fourth round of the 2011 US Open, as well as the 2015 US Open. In doubles he reached the final of the 2017 French Open partnering Santiago González.
The ATP Challenger Tour, known until the end of 2008 as the ATP Challenger Series, is a series of international men's professional tennis tournaments. The Challenger Tour events are the second-highest tier of tennis competition, behind the ATP Tour. The ITF World Tennis Tour tournaments are on the entry-level of international professional tennis competition. The ATP Challenger Tour is administered by the Association of Tennis Professionals. Players who succeed on the ATP Challenger Tour earn sufficient ranking points to become eligible for main draw or qualifying draw entry at ATP Tour tournaments. Players on the Challenger Tour are usually young players looking to advance their careers, those who fail to qualify for ATP events, or former ATP players looking to get back into the big tour.
The Pepperstone ATP rankings are the merit-based method used by the Association of Tennis Professionals (ATP) for determining the qualification for entry as well as the seeding of players in all singles and doubles tournaments. The first rankings for singles were published on 23 August 1973 while the doubles players were ranked for the first time on 1 March 1976. Ranking points are awarded according to the stage of tournament reached, and the prestige of the tournament, with the four Grand Slam tournaments awarding the most points. The rankings are updated every Monday, and points are dropped 52 weeks after being awarded. Novak Djokovic is currently the men's singles world No. 1.
Gastão José Ministro Elias is a Portuguese professional tennis player, who competes on the ATP Tour. He became the fifth Portuguese tennis player to break into the top 100 of the Association of Tennis Professionals singles rankings. In October 2016, he reached a career-high singles ranking of world No. 57 to become the second-highest-ranked Portuguese player, after João Sousa.
The Manchester Trophy is a professional tennis tournament played on outdoor grass courts. It was previously part of the ATP Challenger Tour and now currently part of the ITF Women's Circuit. It is held annually at the Northern Lawn Tennis Club in the Didsbury suburb of Manchester, England, United Kingdom, since 1995. The original defunct tournament, the Manchester Open, began in 1880 as the prestigious Northern Championships and continued until the event became a lower level Challenger tournament in 1995. The Challenger level event ended in 2009, but was revived in 2015. The men's tournament was discontinued after the 2016 edition while the women's tournament was established in 2017.
Andrey Alexandrovich Kuznetsov is a Russian professional tennis player. On 25 April 2016, he achieved his singles career-high of world No. 39.
Jason Murray Kubler is an Australian professional tennis player. He has a career-high ATP singles ranking of No. 63 achieved on 24 April 2023 and a doubles ranking of No. 29 achieved on 20 February 2023. Kubler's career highlight came at the 2023 Australian Open, where he won his first Grand Slam doubles title as a wildcard alongside compatriot Rinky Hijikata.
Jack Sock is an American pickleball player and former professional tennis player. He won four career singles titles and 17 doubles titles on the ATP Tour, and had career-high tennis rankings of world No. 8 in singles and world No. 2 in doubles.
Benjamin "Ben" Mitchell is an Australian professional tennis player who as of March 2021 is unranked by the Association of Tennis Professionals (ATP).
Luke Saville is an Australian professional tennis player. He has had success as a doubles player where he reached his highest ranking of World No. 23 on 8 November 2021. Saville reached the final at the 2020 Australian Open, partnering with fellow Australian Max Purcell.
James Duckworth is an Australian professional tennis player. He has a career-high Association of Tennis Professionals (ATP) singles ranking of World No. 46 achieved on 31 January 2022 and No. 185 in doubles achieved on 10 February 2020. Duckworth represented Australia in tennis at the 2020 Tokyo Olympics and the 2022 ATP Cup.
Andrew Harris is an Australian professional tennis player from Melbourne. He was the winner of the junior doubles titles at the 2012 Wimbledon Championships and at Roland Garros.
Alex Bolt is an Australian professional tennis player. He plays mainly on the ATP Challenger Tour. His career-high rankings by the Association of Tennis Professionals (ATP) are world No. 125 in singles and world No. 81 in doubles. Highlights of Bolt's career thus far include quarterfinal appearances at the 2014 Australian Open men's doubles and at the 2017 Australian Open with Andrew Whittington and Bradley Mousley respectively.
Omar Jasika is an Australian tennis player. He is the 2014 US Open boys' singles champion. Jasika along with Naoki Nakagawa also won the 2014 US Open boys' doubles title defeating Rafael Matos and João Menezes in the final. In winning both, Jasika became the first player in 28 years to win both the boys’ singles and doubles events at the US Open.
Thiago Moura Monteiro is a Brazilian professional tennis player, named after the former F1 driver Tiago Monteiro.
Marc David Polmans is a South African-born Australian professional tennis player. Polmans has a career high ATP singles ranking of World No. 116 achieved on 12 October 2020. He also has a career high ATP doubles ranking of World No. 68 achieved on 16 October 2017. He won the 2015 Australian Open boys' doubles title with fellow Australian Jake Delaney, defeating Hubert Hurkacz and Alex Molčan in the final. He reached the semifinal of the 2017 Australian Open doubles with Andrew Whittington.
Zhang Zhizhen is a Chinese professional tennis player. He reached his career-high singles ranking of world No. 52 on 26 June 2023, and his career-high doubles ranking of world No. 211 in September 2017. He has won three singles and two doubles titles on the ATP Challenger, and two singles and two doubles titles on the ITF Futures Tour. In 2021, Zhang became the first Chinese man in the Open Era to play in the main draw at Wimbledon. In October 2022, he became the first Chinese player to reach the top 100 in the ATP singles rankings. Then, in Madrid, 2023, he became the first Chinese man to reach an ATP Tour Masters 1000 quarterfinal. As of July 2023, he is the highest-ever ranked Chinese male tennis player.
Marcus Willis is a British professional tennis player. Willis made his tour debut at the 2016 Wimbledon Championships after qualifying for the main draw, where he gained recognition after playing against Roger Federer in the second round on Centre Court.
Nicola Kuhn is an Austrian-born German tennis player. He has a career high ATP singles ranking of World No. 174, achieved on 7 October 2019 and a doubles ranking of World No. 287 achieved on 28 January 2019.
2021 Sparkassen Open 
