Marcel Granollers Pujol is a Spanish professional tennis player. He reached a career-high doubles ranking of world No. 1 on 6 May 2024, becoming the second Spanish man to achieve the feat. He also has a career-high singles ranking of No. 19 achieved on 23 July 2012. Granollers has won 30 ATP titles, 4 in singles and 26 in doubles, including the 2012 ATP World Tour Finals. He has also reached five Major doubles finals at the French Open and the US Open in 2014, and at the 2019 US Open, the 2021 and 2023 Wimbledon Championships with Horacio Zeballos.
Horacio Zeballos Jr. is an Argentine professional tennis player. He reached a career-high doubles ranking of world No. 1 on 6 May 2024, becoming the first Argentinian man to achieve the feat. He also has a career-high singles ranking of No. 39 achieved on 4 March 2013. In doubles, he has won 21 ATP titles and reached the men's doubles finals at the 2019 US Open and at Wimbledon in 2021 and 2023 alongside Marcel Granollers. In singles, he owns one title and reached the fourth round at the French Open, doing so in 2017.
Raven Klaasen is a South African professional tennis player who specialises in doubles.
Harri Heliövaara is a Finnish professional tennis player. His highest ranking in doubles is world No. 7, achieved on 12 June 2023 and in singles is World No. 194, achieved on 19 December 2011.
Aleksandr Nedovyesov, is a Ukrainian-Kazakhstani professional tennis player. He reached his highest ATP doubles ranking of No. 38 on 20 May 2024 and a singles ranking of No. 72 on 21 April 2014.
Tim Pütz is a German professional tennis player who specialises in doubles.
Hugo Nys is a Monegasque professional tennis player who previously represented France. A doubles specialist, he reached his highest ATP doubles ranking of No. 12 on 12 June 2023 and singles ranking of No. 327 on 29 July 2019. He became the first ever Monegasque player to reach the semifinal and final of a Major at the 2023 Australian Open.
Romain Arneodo is a French-born Monegasque professional tennis player who specializes in doubles. From 2008 to 2013, Arneodo represented France in international competition, but has since represented Monaco. Arneodo has been ranked by the Association of Tennis Professionals (ATP) as high as world No. 50 in doubles, which he achieved in August 2023. He also has a career-high ATP singles ranking of world No. 455, attained in August 2014. Since turning professional, Arneodo has won one ATP doubles title as well as twelve doubles titles on the ATP Challenger Tour and one singles and 20 doubles titles on the ITF Men's World Tennis Tour.
Benjamin Bonzi is a French professional tennis player. Bonzi has a career-high ATP singles ranking of world No. 42 achieved on 6 February 2023. He also has a career high doubles ranking of world No. 121 achieved on 19 September 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 three ATP doubles titles with Uruguayan Ariel Behar and three with Kazakhstani Aleksandr Nedovyesov. Escobar also has a career high ATP singles ranking of No. 281 achieved on 15 June 2015.
Lloyd Glasspool is a British professional tennis player who specialises in doubles. He has a career-high doubles ranking of No. 7 and a career-high singles ranking of No. 282. In his career, Glasspool has won four ATP and five ATP Challenger doubles titles and 16 Futures titles.
Jan Zieliński is a Polish professional tennis player who specializes in doubles. He has an ATP career-high doubles ranking of world No. 7, which he attained on 19 June 2023. His highest ranking in singles has been No. 769, achieved on 20 September 2021. His best results at Grand Slam events have been reaching the final of the 2023 Australian Open doubles with Hugo Nys and winning the 2024 Australian Open mixed doubles alongside partner Hsieh Su-wei.
Rinky Hijikata is an Australian professional tennis player. Following a successful career at the UNC, he went professional and achieved career high ATP rankings in singles of world No. 70 on 16 October 2023 and in doubles of No. 23 on 30 October 2023.
Julian Cash is a British tennis player. He has a career high ATP doubles ranking of world No. 46 achieved on 1 April 2024. He also has a career high singles ranking of world No. 786 achieved on 1 August 2022. Cash has won one ATP Tour doubles title.
Hendrik Jebens is a German professional tennis player who specializes in doubles. He has a career high ATP doubles ranking of world No. 61, achieved on 27 May 2024. He has won seven ATP Challenger doubles titles, six with partner Constantin Frantzen.
Denys Molchanov and Aleksandr Nedovyesov were the defending champions but only Molchanov chose to defend his title, partnering Andrey Golubev. Molchanov lost in the final to Sriram Balaji and Andre Begemann.
The 2023 Swiss Indoors was a men's tennis tournament played on indoor hard courts. It was the 52nd edition of the event, and part of the 500 series of the 2023 ATP Tour. It was held at the St. Jakobshalle in Basel, Switzerland, from 23 October until 29 October 2023. Sixth-seeded Félix Auger-Aliassime won his second consecutive singles title at the event.
Santiago González and Édouard Roger-Vasselin defeated Hugo Nys and Jan Zieliński in the final, 6–7(8–10), 7–6(7–3), [10–1] to win the doubles tennis title at the 2023 Swiss Indoors.
The 2023 Moselle Open was a men's tennis tournament to be played on indoor hard courts. It was the 20th edition of the event, and it is part of the ATP 250 tournaments on the 2023 ATP Tour. It took place at the Arènes de Metz from 5 November to 11 November 2023.
Defending champions Hugo Nys and Jan Zieliński defeated Constantin Frantzen and Hendrik Jebens 6–4, 6–4 in the final to win the doubles tennis title at the 2023 Moselle Open.
Germany
