![Prostejov, tschechische Republik. 06 Juni, 2019. Federico Gaio (Italien) ist während der Moneta Czech Open Tennis Turnier gesehen, Teil der ATP Challenger Tour, am 6. Juni 2019 in Prostejov, tschechische Republik. Credit: Prostejov, tschechische Republik. 06 Juni, 2019. Federico Gaio (Italien) ist während der Moneta Czech Open Tennis Turnier gesehen, Teil der ATP Challenger Tour, am 6. Juni 2019 in Prostejov, tschechische Republik. Credit:](https://c8.alamy.com/compde/tcbtcf/prostejov-tschechische-republik-06-juni-2019-federico-gaio-italien-ist-wahrend-der-moneta-czech-open-tennis-turnier-gesehen-teil-der-atp-challenger-tour-am-6-juni-2019-in-prostejov-tschechische-republik-credit-ludek-perinactk-photoalamy-leben-nachrichten-tcbtcf.jpg)
Prostejov, tschechische Republik. 06 Juni, 2019. Federico Gaio (Italien) ist während der Moneta Czech Open Tennis Turnier gesehen, Teil der ATP Challenger Tour, am 6. Juni 2019 in Prostejov, tschechische Republik. Credit:
![Prague, Czech Republic. 17th Aug, 2020. Stan Wawrinka of Switzerland holds tennis balls during his I. CLTK Prague Open of the ATP Challenger Tour match against Roman Saifullin of Russia in Prague, Prague, Czech Republic. 17th Aug, 2020. Stan Wawrinka of Switzerland holds tennis balls during his I. CLTK Prague Open of the ATP Challenger Tour match against Roman Saifullin of Russia in Prague,](https://c8.alamy.com/comp/2CC2M48/prague-czech-republic-17th-aug-2020-stan-wawrinka-of-switzerland-holds-tennis-balls-during-his-i-cltk-prague-open-of-the-atp-challenger-tour-match-against-roman-saifullin-of-russia-in-prague-czech-republic-august-17-2020-credit-michal-kamarytctk-photoalamy-live-news-2CC2M48.jpg)
Prague, Czech Republic. 17th Aug, 2020. Stan Wawrinka of Switzerland holds tennis balls during his I. CLTK Prague Open of the ATP Challenger Tour match against Roman Saifullin of Russia in Prague,
![Prague, Czech Republic. 20th Aug, 2020. Sumit Nagal of India returns a shot to Stan Wawrinka of Switzerland during the I. CLTK Prague Open of the ATP Challenger Tour match in Prague, Prague, Czech Republic. 20th Aug, 2020. Sumit Nagal of India returns a shot to Stan Wawrinka of Switzerland during the I. CLTK Prague Open of the ATP Challenger Tour match in Prague,](https://c8.alamy.com/comp/2CCAJGF/prague-czech-republic-20th-aug-2020-sumit-nagal-of-india-returns-a-shot-to-stan-wawrinka-of-switzerland-during-the-i-cltk-prague-open-of-the-atp-challenger-tour-match-in-prague-czech-republic-august-20-2020-credit-michal-kamarytctk-photoalamy-live-news-2CCAJGF.jpg)
Prague, Czech Republic. 20th Aug, 2020. Sumit Nagal of India returns a shot to Stan Wawrinka of Switzerland during the I. CLTK Prague Open of the ATP Challenger Tour match in Prague,
![Stan Wawrinka of Switzerland holds tennis balls during his I, Stock Photo, Picture And Rights Managed Image. Pic. CKP-P202008170567001 | agefotostock Stan Wawrinka of Switzerland holds tennis balls during his I, Stock Photo, Picture And Rights Managed Image. Pic. CKP-P202008170567001 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/7aba7f0a54699cf399de9e34a76ec3a7/ckp-p202008170567001.jpg)
Stan Wawrinka of Switzerland holds tennis balls during his I, Stock Photo, Picture And Rights Managed Image. Pic. CKP-P202008170567001 | agefotostock
![Roman Saifullin of Russia returns a shot to Stan Wawrinka of Switzerland during the I, Stock Photo, Picture And Rights Managed Image. Pic. CKP-P202008170568901 | agefotostock Roman Saifullin of Russia returns a shot to Stan Wawrinka of Switzerland during the I, Stock Photo, Picture And Rights Managed Image. Pic. CKP-P202008170568901 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/302e1b03f77484557f6f3b12bf32435a/ckp-p202008170568901.jpg)