LONDON, ENGLAND - NOVEMBER 27: Roger Federer fans celebrate his victory during the Barclays ATP World Tour Finals at the O2 Arena on November 27, 2011 in London, England. (Photo by Julian ... more 
LONDON, ENGLAND - NOVEMBER 27: Roger Federer fans celebrate his victory during the Barclays ATP World Tour Finals at the O2 Arena on November 27, 2011 in London, England. (Photo by Julian Finney/Getty Images) less 
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Getty Images | Photo By Julian Finney / Getty Images
Sun, Nov 27, 2011 4:16 PM EST