![Czech tennis player Radek Stepanek returns a backhand to his U.S. opponent Todd Martin during their Tennis World Team Cup 2003 match in Dusseldorf, western Germany, Thursday, May 22, 2003. (AP Photo/Hermann Czech tennis player Radek Stepanek returns a backhand to his U.S. opponent Todd Martin during their Tennis World Team Cup 2003 match in Dusseldorf, western Germany, Thursday, May 22, 2003. (AP Photo/Hermann](https://c8.alamy.com/comp/2PF727R/czech-tennis-player-radek-stepanek-returns-a-backhand-to-his-us-opponent-todd-martin-during-their-tennis-world-team-cup-2003-match-in-dusseldorf-western-germany-thursday-may-22-2003-ap-photohermann-j-knippertz-2PF727R.jpg)
Czech tennis player Radek Stepanek returns a backhand to his U.S. opponent Todd Martin during their Tennis World Team Cup 2003 match in Dusseldorf, western Germany, Thursday, May 22, 2003. (AP Photo/Hermann
![Jeremy Chardy (L) and Fabrice Martin (R) of France pose with the trophy after winning the ATP Qatar Open Tennis tournament doubles final against Vasek Pospisil of Canada and Radek Stepanek of Jeremy Chardy (L) and Fabrice Martin (R) of France pose with the trophy after winning the ATP Qatar Open Tennis tournament doubles final against Vasek Pospisil of Canada and Radek Stepanek of](https://c8.alamy.com/comp/2ETB5C6/jeremy-chardy-l-and-fabrice-martin-r-of-france-pose-with-the-trophy-after-winning-the-atp-qatar-open-tennis-tournament-doubles-final-against-vasek-pospisil-of-canada-and-radek-stepanek-of-czech-republic-at-the-khalifa-international-tennis-complex-in-doha-capital-of-qatar-on-january-06-2017-jeremy-chardy-and-his-teammate-fabrice-martin-became-won-the-title-2-0-xinhuanikku-photo-by-xinhuasipa-usa-2ETB5C6.jpg)
Jeremy Chardy (L) and Fabrice Martin (R) of France pose with the trophy after winning the ATP Qatar Open Tennis tournament doubles final against Vasek Pospisil of Canada and Radek Stepanek of
![Radek Stepanek of the Czech Republic, returns the ball against Juan Martin del Potro of Argentina, at the Rogers Cup men's tennis tournament in Toronto on Wednesday, Aug. 8, 2012. (AP Photo/The Radek Stepanek of the Czech Republic, returns the ball against Juan Martin del Potro of Argentina, at the Rogers Cup men's tennis tournament in Toronto on Wednesday, Aug. 8, 2012. (AP Photo/The](https://c8.alamy.com/comp/2P68NJW/radek-stepanek-of-the-czech-republic-returns-the-ball-against-juan-martin-del-potro-of-argentina-at-the-rogers-cup-mens-tennis-tournament-in-toronto-on-wednesday-aug-8-2012-ap-photothe-canadian-press-aaron-vincent-elkaim-2P68NJW.jpg)