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AP Novak Djokovic of Serbia celebrates after defeating Roger Federer of Switzerland in their ATP World Tour Tennis singles final match in London, Monday, - Photo

Novak Djokovic of Serbia celebrates after defeating Roger Federer of Switzerland in their ATP World Tour Tennis singles final match in London, Monday,

Tuesday November 13, 12:10 AM
Novak Djokovic of Serbia celebrates after defeating Roger Federer of Switzerland in their ATP World Tour Tennis singles final match in London, Monday, Nov. 12, 2012. (AP Photo/Kirsty Wigglesworth)