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MELBOURNE, AUSTRALIA - JANUARY 20: Novak Djokovic of Serbia plays a forehand in his first round match against Aljaz Bedene of Slovenia during day two of the 2015 Australian Open at Melbourne Park on January 20, 2015 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 20:  Novak Djokovic of Serbia plays a forehand in his first round match against Aljaz Bedene of Slovenia during day two of the 2015 Australian Open at Melbourne Park on January 20, 2015 in Melbourne, Australia.  (Photo by Quinn Rooney/Getty Images)