Andrei Luzgin is a tennis coach and former Estonian tennis player. He achieved his career high ATP singles ranking in 1996 at No. 1212. The same year he also achieved his career high doubles ranking at No. 844.
Jürgen Zopp is a former professional Estonian tennis player. He is Estonia's all-time highest ranked male tennis player with a career-high singles ranking of World No. 71 in 2012.
Peter Gojowczyk is a German professional tennis player. He achieved a career-high ATP singles ranking of world No. 39 in June 2018.
Vladimir Ivanov is an Estonian tennis player.
Henri Joona Julius Laaksonen is a Swiss professional tennis player. His highest singles ranking is world No. 84, which he achieved on 14 February 2022, and his highest doubles ranking is world No. 191, achieved on 24 December 2018.
Andrey Andreyevich Rublev is a Russian professional tennis player. He has been ranked as high as world No. 5 in singles by the Association of Tennis Professionals (ATP), which he first achieved in September 2021. Rublev has won 14 ATP Tour singles titles, including a Masters 1000 title at the 2023 Monte-Carlo Masters. He has a career-high doubles ranking of No. 52, achieved on 2 October 2023. He has won four doubles titles, including an Olympic gold medal in the mixed doubles at the 2020 Summer Olympics with Anastasia Pavlyuchenkova and a Masters 1000 title at the 2023 Madrid Open with Karen Khachanov.
Yegor Alekseyevich Gerasimov or Yahor Alyakseyevich Herasimaŭ is a Belarusian professional tennis player. He has a career high ATP singles ranking of World No. 65, which he achieved on 24 February 2020. He also achieved a career high ATP doubles ranking of World No. 263 on 2 March 2015.
Hugo Dellien Velasco is a Bolivian professional tennis player. He has a career-high ATP singles ranking of No. 64, achieved on 1 August 2022. He is the current No. 1 Bolivian tennis player. He also has a career-high ATP doubles ranking of No. 185 achieved on 2 February 2015. In juniors, Dellien had a career-high combined ranking of No. 2 in March 2011.
Roman Rishatovich Safiullin is a Russian professional tennis player. Safiullin has a career high ATP singles ranking of world No. 41 achieved on 25 September 2023, and doubles of world No. 239 achieved on 7 February 2022.
Gonzalo Escobar is an Ecuadorian tennis player. His career-high doubles ranking is World No. 38, achieved on 15 November 2021. He has won four ATP doubles titles with Uruguayan Ariel Behar and one with Kazakhstani Aleksandr Nedovyesov. Escobar also has a career high ATP singles ranking of No. 281 achieved on 15 June 2015.
Reilly Opelka is an American inactive professional tennis player. At 6 feet 11 inches tall, he is tied for the tallest-ever ATP-ranked player, and can produce serves that measure over 140 mph. He has been ranked as high as World No. 17 in singles by the ATP, which he achieved on February 28, 2022, and in doubles as world No. 89 on August 2, 2021. He has won four ATP singles titles and one doubles title. He is a junior Wimbledon champion.
Tim van Rijthoven is an inactive Dutch professional tennis player.
Daniil Sergeyevich Medvedev is a Russian professional tennis player. Currently ranked world No. 3 in singles by the Association of Tennis Professionals (ATP), he is a former world No. 1, holding the ranking for a total of 16 weeks. Medvedev has won 20 ATP Tour singles titles, including the 2021 US Open and 2020 ATP Finals. In the former, Medvedev defeated then-world No. 1 Novak Djokovic in the final to deny him the Grand Slam. In the latter, he became the first and only player to defeat the top three ranked players in the world en route to the year-end championship title. He has also won six Masters titles, and contested five major finals. His six Masters titles all came in different venues, making him only the sixth player to win Masters titles at six different venues.
Antoine Bellier is a Swiss professional tennis player. He has a career high ATP singles ranking of world No. 168, achieved on 10 April 2023. He also has a career-high ATP doubles ranking of world No. 355 achieved on 3 October 2022. Bellier has won one ATP Challenger and four ITF singles titles as well as twelve doubles titles on the ITF Men's Circuit. Bellier has represented Switzerland in Davis Cup, where he has a win–loss record of 1–4.
Wu Yibing is a Chinese professional tennis player. He has been ranked as high as world No. 54 by the Association of Tennis Professionals (ATP), which he first achieved on 10 April 2023, making him the second highest-ranked male Chinese player in history, behind Zhang Zhizhen He also a career-high doubles ranking of No. 295, achieved on 23 April 2018. Wu is the first Chinese man in the Open Era to reach, and to win, an ATP Tour-level singles final, doing so at the 2023 Dallas Open.
Zsombor Piros is a Hungarian professional tennis player.
Yannick Hanfmann is a German professional tennis player. He has a career-high ATP singles ranking of world No. 45, achieved in July 2023. He is known for his powerful serves and groundstrokes.
Alexander Alexandrovich Shevchenko is a Russian tennis player.
Matteo Arnaldi is an Italian professional tennis player. Arnaldi has a career high ATP singles ranking of world No. 42, achieved on 2 October 2023, and a career high doubles ranking of world No. 286, achieved on 8 August 2022.
Mark Lajal is an Estonian tennis player.
Estonia 
