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Novak Djokovic of Serbia kisses the championship trophy after defeating Roger Federer of Switzerland in the men's final of the BNP Paribas Tennis Open in Indian Wells, California on March 22, 2015. Djokovic defeated Federer 6-3, 6-7 (5), 6-2. AFP PHOTO / FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP via Getty Images)

Novak Djokovic of Serbia kisses the championship trophy after defeating Roger Federer of Switzerland in the men's final of the BNP Paribas Tennis Open in Indian Wells, California on March 22, 2015.  Djokovic defeated Federer 6-3, 6-7 (5), 6-2. AFP PHOTO / FREDERIC J. BROWN        (Photo credit should read FREDERIC J. BROWN/AFP via Getty Images)