![Tomas Berdych, of the Czech Republic returns a ball during a training session prior to the Davis Cup World Group first round match between Switzerland and Czech Republic, in Geneva, Switzerland, Tuesday, Tomas Berdych, of the Czech Republic returns a ball during a training session prior to the Davis Cup World Group first round match between Switzerland and Czech Republic, in Geneva, Switzerland, Tuesday,](https://c8.alamy.com/comp/2P5N0YP/tomas-berdych-of-the-czech-republic-returns-a-ball-during-a-training-session-prior-to-the-davis-cup-world-group-first-round-match-between-switzerland-and-czech-republic-in-geneva-switzerland-tuesday-jan-29-2013-the-davis-cup-first-round-switzerland-against-czech-republic-will-take-place-from-feby-1-to-feb-3-ap-photokeystone-salvatore-di-nolfi-2P5N0YP.jpg)
Tomas Berdych, of the Czech Republic returns a ball during a training session prior to the Davis Cup World Group first round match between Switzerland and Czech Republic, in Geneva, Switzerland, Tuesday,
![Roger Federer of Switzerland is seen vs. Tomas Berdych of the Czech Republic men's singles tennis of the Beijing 2008 Olympics in Beijing, Wednesday, Aug. 13, 2008. (AP Photo/Charles Krupa Stock Photo - Alamy Roger Federer of Switzerland is seen vs. Tomas Berdych of the Czech Republic men's singles tennis of the Beijing 2008 Olympics in Beijing, Wednesday, Aug. 13, 2008. (AP Photo/Charles Krupa Stock Photo - Alamy](https://c8.alamy.com/comp/2NFHJ2X/roger-federer-of-switzerland-is-seen-vs-tomas-berdych-of-the-czech-republic-mens-singles-tennis-of-the-beijing-2008-olympics-in-beijing-wednesday-aug-13-2008-ap-photocharles-krupa-2NFHJ2X.jpg)
Roger Federer of Switzerland is seen vs. Tomas Berdych of the Czech Republic men's singles tennis of the Beijing 2008 Olympics in Beijing, Wednesday, Aug. 13, 2008. (AP Photo/Charles Krupa Stock Photo - Alamy
![Tomas Berdych, of the Czech Republic returns a ball during a training session prior to the Davis Cup World Group first round match between Switzerland and Czech Republic, in Geneva, Switzerland, Tuesday, Tomas Berdych, of the Czech Republic returns a ball during a training session prior to the Davis Cup World Group first round match between Switzerland and Czech Republic, in Geneva, Switzerland, Tuesday,](https://c8.alamy.com/comp/2P5N0X9/tomas-berdych-of-the-czech-republic-returns-a-ball-during-a-training-session-prior-to-the-davis-cup-world-group-first-round-match-between-switzerland-and-czech-republic-in-geneva-switzerland-tuesday-jan-29-2013-the-davis-cup-first-round-switzerland-against-czech-republic-will-take-place-from-feby-1-to-feb-3-ap-photokeystone-salvatore-di-nolfi-2P5N0X9.jpg)
Tomas Berdych, of the Czech Republic returns a ball during a training session prior to the Davis Cup World Group first round match between Switzerland and Czech Republic, in Geneva, Switzerland, Tuesday,
![Roger Federer of Switzerland plays a forehand return to Tomas Berdych of the Czech Republic during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 26, 2016.(AP Roger Federer of Switzerland plays a forehand return to Tomas Berdych of the Czech Republic during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 26, 2016.(AP](https://c8.alamy.com/comp/2N0EBCE/roger-federer-of-switzerland-plays-a-forehand-return-to-tomas-berdych-of-the-czech-republic-during-their-quarterfinal-match-at-the-australian-open-tennis-championships-in-melbourne-australia-tuesday-jan-26-2016ap-photorick-rycroft-2N0EBCE.jpg)
Roger Federer of Switzerland plays a forehand return to Tomas Berdych of the Czech Republic during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 26, 2016.(AP
![Roger Federer, Switzerland, reacts after losing a point to Tomas Berdych, Czech Republic, in the fourth set of their quarterfinal match at the 2012 U.S. Open held at the National Tennis Center Roger Federer, Switzerland, reacts after losing a point to Tomas Berdych, Czech Republic, in the fourth set of their quarterfinal match at the 2012 U.S. Open held at the National Tennis Center](https://c8.alamy.com/comp/TYN6R5/roger-federer-switzerland-reacts-after-losing-a-point-to-tomas-berdych-czech-republic-in-the-fourth-set-of-their-quarterfinal-match-at-the-2012-us-open-held-at-the-national-tennis-center-on-september-5-2012-derdych-won-77-61-6-4-3-6-6-3-upi-photomonika-graff-TYN6R5.jpg)
Roger Federer, Switzerland, reacts after losing a point to Tomas Berdych, Czech Republic, in the fourth set of their quarterfinal match at the 2012 U.S. Open held at the National Tennis Center
![Tomas Berdych of the Czech Republic serves to Roger Federer of Switzerland during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 26, 2016.(AP Photo/Andrew Brownbill Stock Tomas Berdych of the Czech Republic serves to Roger Federer of Switzerland during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 26, 2016.(AP Photo/Andrew Brownbill Stock](https://c8.alamy.com/comp/2N0EB9R/tomas-berdych-of-the-czech-republic-serves-to-roger-federer-of-switzerland-during-their-quarterfinal-match-at-the-australian-open-tennis-championships-in-melbourne-australia-tuesday-jan-26-2016ap-photoandrew-brownbill-2N0EB9R.jpg)