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Photo by: Kirsty Wigglesworth

FOR SPANISH END OF THE YEAR STORY 2010 TENNIS - FILE - In this Nov. 28, 2010 file photo Switzerland's Roger Federer celebrates as he holds the trophy after beating Spain's Rafael Nadal, left, to win the singles final tennis match at the ATP World Tour Finals at the O2 Arena in London. (AP Photo/Kirsty Wigglesworth, File)

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