![German tennis player Julian Reister serves the ball during the first round match against Frederico Delbonis from Argentina at the ATP tennis tournament in Hamburg, Germany,Tuesday July 16, 2013. (AP Photo/dpa,Axel Heimken German tennis player Julian Reister serves the ball during the first round match against Frederico Delbonis from Argentina at the ATP tennis tournament in Hamburg, Germany,Tuesday July 16, 2013. (AP Photo/dpa,Axel Heimken](https://c8.alamy.com/comp/2P58KXJ/german-tennis-player-julian-reister-serves-the-ball-during-the-first-round-match-against-frederico-delbonis-from-argentina-at-the-atp-tennis-tournament-in-hamburg-germanytuesday-july-16-2013-ap-photodpaaxel-heimken-2P58KXJ.jpg)
German tennis player Julian Reister serves the ball during the first round match against Frederico Delbonis from Argentina at the ATP tennis tournament in Hamburg, Germany,Tuesday July 16, 2013. (AP Photo/dpa,Axel Heimken
![30 July 2023, Hamburg: Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Final, Zverev (Germany) - Djere (Serbia). Alexander Zverev reacts. Photo: Frank Molter/dpa Stock Photo - Alamy 30 July 2023, Hamburg: Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Final, Zverev (Germany) - Djere (Serbia). Alexander Zverev reacts. Photo: Frank Molter/dpa Stock Photo - Alamy](https://c8.alamy.com/comp/2REXF1W/30-july-2023-hamburg-tennis-hamburg-european-open-atp-tournament-rothenbaum-tennis-stadium-men-singles-final-zverev-germany-djere-serbia-alexander-zverev-reacts-photo-frank-molterdpa-2REXF1W.jpg)
30 July 2023, Hamburg: Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Final, Zverev (Germany) - Djere (Serbia). Alexander Zverev reacts. Photo: Frank Molter/dpa Stock Photo - Alamy
![Arcade Fun & Plenty Of Banter Uniting Team Germany At ATP Cup 2021 - Alexander Zverev, Jan-Lennard Struff, Kevin Krawietz, Andreas Mies, Mischa Zverev | ATP Tour | Tennis Arcade Fun & Plenty Of Banter Uniting Team Germany At ATP Cup 2021 - Alexander Zverev, Jan-Lennard Struff, Kevin Krawietz, Andreas Mies, Mischa Zverev | ATP Tour | Tennis](http://www.atptour.com/-/media/images/news/2021/02/03/08/39/team-germany-atp-cup-2021-lineup.jpg)
Arcade Fun & Plenty Of Banter Uniting Team Germany At ATP Cup 2021 - Alexander Zverev, Jan-Lennard Struff, Kevin Krawietz, Andreas Mies, Mischa Zverev | ATP Tour | Tennis
![Germany's Florian Mayer serves during his third round match against Argentina's Juan Martin Del Porto at the Mercedes Cup ATP tennis tournament at the Weissenhof in Stuttgart, southwestern Germany, on Thursday, July Germany's Florian Mayer serves during his third round match against Argentina's Juan Martin Del Porto at the Mercedes Cup ATP tennis tournament at the Weissenhof in Stuttgart, southwestern Germany, on Thursday, July](https://c8.alamy.com/comp/2PCRJK4/germanys-florian-mayer-serves-during-his-third-round-match-against-argentinas-juan-martin-del-porto-at-the-mercedes-cup-atp-tennis-tournament-at-the-weissenhof-in-stuttgart-southwestern-germany-on-thursday-july-20-2006-ap-photodaniel-maurer-2PCRJK4.jpg)
Germany's Florian Mayer serves during his third round match against Argentina's Juan Martin Del Porto at the Mercedes Cup ATP tennis tournament at the Weissenhof in Stuttgart, southwestern Germany, on Thursday, July
![Hamburg, Germany. 28th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Quarterfinals, Ruud (Norway) - Fils (France). Caspar Ruud is in action. Credit: Frank Molter/dpa/Alamy Live News Hamburg, Germany. 28th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Quarterfinals, Ruud (Norway) - Fils (France). Caspar Ruud is in action. Credit: Frank Molter/dpa/Alamy Live News](https://c8.alamy.com/comp/2REK99P/hamburg-germany-28th-july-2023-tennis-hamburg-european-open-atp-tournament-rothenbaum-tennis-stadium-men-singles-quarterfinals-ruud-norway-fils-france-caspar-ruud-is-in-action-credit-frank-molterdpaalamy-live-news-2REK99P.jpg)
Hamburg, Germany. 28th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Quarterfinals, Ruud (Norway) - Fils (France). Caspar Ruud is in action. Credit: Frank Molter/dpa/Alamy Live News
![Hamburg, Germany. 30th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Final, Zverev (Germany) - Djere (Serbia). Laslo Djere is in action. Credit: Frank Molter/dpa/Alamy Live News Hamburg, Germany. 30th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Final, Zverev (Germany) - Djere (Serbia). Laslo Djere is in action. Credit: Frank Molter/dpa/Alamy Live News](https://c8.alamy.com/comp/2REXE6E/hamburg-germany-30th-july-2023-tennis-hamburg-european-open-atp-tournament-rothenbaum-tennis-stadium-men-singles-final-zverev-germany-djere-serbia-laslo-djere-is-in-action-credit-frank-molterdpaalamy-live-news-2REXE6E.jpg)
Hamburg, Germany. 30th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Final, Zverev (Germany) - Djere (Serbia). Laslo Djere is in action. Credit: Frank Molter/dpa/Alamy Live News
![Hamburg, Germany. 28th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Quarterfinals, Ruud (Norway) - Fils (France). Caspar Ruud is in action. Credit: Frank Molter/dpa/Alamy Live News Hamburg, Germany. 28th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Quarterfinals, Ruud (Norway) - Fils (France). Caspar Ruud is in action. Credit: Frank Molter/dpa/Alamy Live News](https://c8.alamy.com/comp/2REK993/hamburg-germany-28th-july-2023-tennis-hamburg-european-open-atp-tournament-rothenbaum-tennis-stadium-men-singles-quarterfinals-ruud-norway-fils-france-caspar-ruud-is-in-action-credit-frank-molterdpaalamy-live-news-2REK993.jpg)
Hamburg, Germany. 28th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Quarterfinals, Ruud (Norway) - Fils (France). Caspar Ruud is in action. Credit: Frank Molter/dpa/Alamy Live News
![Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Zverev ( Germany) - Molcan (Slovakia). Alexander Zverev is in action. Credit: Frank Molter/dpa/Alamy Live Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Zverev ( Germany) - Molcan (Slovakia). Alexander Zverev is in action. Credit: Frank Molter/dpa/Alamy Live](https://c8.alamy.com/comp/2RE517W/hamburg-germany-25th-july-2023-tennis-hamburg-european-open-atp-tournament-rothenbaum-tennis-stadium-men-singles-1st-round-zverev-germany-molcan-slovakia-alexander-zverev-is-in-action-credit-frank-molterdpaalamy-live-news-2RE517W.jpg)
Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Zverev ( Germany) - Molcan (Slovakia). Alexander Zverev is in action. Credit: Frank Molter/dpa/Alamy Live
![German tennis player Dustin Brown in action during the ATP tennis tournament match against his..., Stock Photo, Picture And Rights Managed Image. Pic. PAH-170619-99-909738-DPAI | agefotostock German tennis player Dustin Brown in action during the ATP tennis tournament match against his..., Stock Photo, Picture And Rights Managed Image. Pic. PAH-170619-99-909738-DPAI | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/0f208fc4e47d2abdfadf5af492b3dace/pah-170619-99-909738-dpai.jpg)
German tennis player Dustin Brown in action during the ATP tennis tournament match against his..., Stock Photo, Picture And Rights Managed Image. Pic. PAH-170619-99-909738-DPAI | agefotostock
![Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Marterer ( Germany) - Molleker (Germany). Maximilian Marterer is in action. Credit: Frank Molter/dpa/Alamy Live Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Marterer ( Germany) - Molleker (Germany). Maximilian Marterer is in action. Credit: Frank Molter/dpa/Alamy Live](https://c8.alamy.com/comp/2RE4RE5/hamburg-germany-25th-july-2023-tennis-hamburg-european-open-atp-tournament-rothenbaum-tennis-stadium-men-singles-1st-round-marterer-germany-molleker-germany-maximilian-marterer-is-in-action-credit-frank-molterdpaalamy-live-news-2RE4RE5.jpg)
Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Marterer ( Germany) - Molleker (Germany). Maximilian Marterer is in action. Credit: Frank Molter/dpa/Alamy Live
![Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Zverev ( Germany) - Molcan (Slovakia). Alexander Zverev is in action. Credit: Frank Molter/dpa/Alamy Live Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Zverev ( Germany) - Molcan (Slovakia). Alexander Zverev is in action. Credit: Frank Molter/dpa/Alamy Live](https://c8.alamy.com/comp/2RE506B/hamburg-germany-25th-july-2023-tennis-hamburg-european-open-atp-tournament-rothenbaum-tennis-stadium-men-singles-1st-round-zverev-germany-molcan-slovakia-alexander-zverev-is-in-action-credit-frank-molterdpaalamy-live-news-2RE506B.jpg)
Hamburg, Germany. 25th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, men, singles, 1st round, Zverev ( Germany) - Molcan (Slovakia). Alexander Zverev is in action. Credit: Frank Molter/dpa/Alamy Live
![Halle, Germany. 19th June, 2023. Tennis: ATP Tour Singles, Men, 1st Round, Otte (Germany) - Dere (Serbia). Oscar Otte throws the ball to serve. Credit: Friso Gentsch/dpa/Alamy Live News Stock Photo - Halle, Germany. 19th June, 2023. Tennis: ATP Tour Singles, Men, 1st Round, Otte (Germany) - Dere (Serbia). Oscar Otte throws the ball to serve. Credit: Friso Gentsch/dpa/Alamy Live News Stock Photo -](https://c8.alamy.com/comp/2R84WT8/halle-germany-19th-june-2023-tennis-atp-tour-singles-men-1st-round-otte-germany-dere-serbia-oscar-otte-throws-the-ball-to-serve-credit-friso-gentschdpaalamy-live-news-2R84WT8.jpg)
Halle, Germany. 19th June, 2023. Tennis: ATP Tour Singles, Men, 1st Round, Otte (Germany) - Dere (Serbia). Oscar Otte throws the ball to serve. Credit: Friso Gentsch/dpa/Alamy Live News Stock Photo -
![Hamburg, Germany. 29th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Semifinals, Fils (France) - Zverev (Germany). Alexander Zverev is in action. Credit: Frank Molter/dpa/Alamy Live News Hamburg, Germany. 29th July, 2023. Tennis: Hamburg European Open (ATP Tournament), Rothenbaum Tennis Stadium, Men, Singles, Semifinals, Fils (France) - Zverev (Germany). Alexander Zverev is in action. Credit: Frank Molter/dpa/Alamy Live News](https://c8.alamy.com/comp/2RERCMP/hamburg-germany-29th-july-2023-tennis-hamburg-european-open-atp-tournament-rothenbaum-tennis-stadium-men-singles-semifinals-fils-france-zverev-germany-alexander-zverev-is-in-action-credit-frank-molterdpaalamy-live-news-2RERCMP.jpg)