Roger Federer

Associated Press
Roger Federer of Switzerland holds up and kisses the winners trophy after he defeated Jo-Wilfried Tsonga of France in their singles final tennis match at the ATP World Tour Finals, in the O2 arena in London, Sunday, Nov.  27, 2011. (AP Photo/Kirsty Wigglesworth)

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One of the greatest tennis players of all time will represent Switzerland at the London Games.

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