![Prague, Czech Republic. 17th Aug, 2020. Roman Saifullin of Russia reacts during his I. CLTK Prague Open of the ATP Challenger Tour match against Stan Wawrinka of Switzerland in Prague, Czech Republic, Prague, Czech Republic. 17th Aug, 2020. Roman Saifullin of Russia reacts during his I. CLTK Prague Open of the ATP Challenger Tour match against Stan Wawrinka of Switzerland in Prague, Czech Republic,](https://c8.alamy.com/comp/2CC2M1R/prague-czech-republic-17th-aug-2020-roman-saifullin-of-russia-reacts-during-his-i-cltk-prague-open-of-the-atp-challenger-tour-match-against-stan-wawrinka-of-switzerland-in-prague-czech-republic-august-17-2020-credit-michal-kamarytctk-photoalamy-live-news-2CC2M1R.jpg)
Prague, Czech Republic. 17th Aug, 2020. Roman Saifullin of Russia reacts during his I. CLTK Prague Open of the ATP Challenger Tour match against Stan Wawrinka of Switzerland in Prague, Czech Republic,
![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:
![Stan Wawrinka of Switzerland holds tennis balls during his I CLTK Prague Open of the ATP, Tennis Herren Stan Wawrinka of Switzerland holds tennis balls during his I CLTK Prague Open of the ATP, Tennis Herren](https://www.imago-images.com/bild/sp/0047870322/w.jpg)