Novak Djokovic of Serbia reacts to losing a point during his Vienna Open first round tennis match against Robby Ginepri of the U.S., October 9, 2007. REUTERS/Herbert Neubauer (AUSTRIA Stock Photo - Alamy
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Novak Djokovic of Serbia throws his racket during his match against Danai Udomchoke of Thailand at the Australian Open tennis tournament in Melbourne January 19, 2007. REUTERS/Tim Wimborne (AUSTRALIA Stock Photo - Alamy
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