Novak Djokovic of Serbia arrives for a practice session at the Monte 

Novak Djokovic of Serbia arrives for a practice session at the Monte Carlo Tennis Masters tournament in Monaco, Tuesday, April 16, 2013. (AP Photo/Lionel Cironneau)
Associated Press
Novak Djokovic of Serbia arrives for a practice session at the Monte Carlo Tennis Masters tournament in Monaco, Tuesday, April 16, 2013. (AP Photo/Lionel Cironneau)
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