Djokovic of Serbia celebrates after his men’s singles quarter-final match against Seppi of Italy during the ATP Dubai Tennis Championships

Djokovic of Serbia celebrates after his men’s singles quarter-final match against Seppi of Italy during the ATP Dubai Tennis Championships

Novak Djokovic of Serbia celebrates after his men’s singles quarter-final match against Andreas Seppi of Italy during the ATP Dubai Tennis Championships, February 28, 2013. REUTERS/Mohammed Salem (UNITED ARAB EMIRATES – Tags: SPORT TENNIS)