![Roger Federer of Switzerland returns the ball to Nikolay Davydenko of Russia during their ATP World Tour Finals semi-final tennis match in London, November 28, 2009. REUTERS/Suzanne Plunkett (BRITAIN SPORT TENNIS Stock Roger Federer of Switzerland returns the ball to Nikolay Davydenko of Russia during their ATP World Tour Finals semi-final tennis match in London, November 28, 2009. REUTERS/Suzanne Plunkett (BRITAIN SPORT TENNIS Stock](https://c8.alamy.com/comp/2E8FJPG/roger-federer-of-switzerland-returns-the-ball-to-nikolay-davydenko-of-russia-during-their-atp-world-tour-finals-semi-final-tennis-match-in-london-november-28-2009-reuterssuzanne-plunkett-britain-sport-tennis-2E8FJPG.jpg)
Roger Federer of Switzerland returns the ball to Nikolay Davydenko of Russia during their ATP World Tour Finals semi-final tennis match in London, November 28, 2009. REUTERS/Suzanne Plunkett (BRITAIN SPORT TENNIS Stock
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2009 Promotional photo for the ATP World Tour Finals. Back left to right: Juan Martin Del Potro (Argentina), Novak… | Tennis champion, Roger federer, Tennis players
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