Novak Djokovic of Serbia signs autographs for fans after defeating Tomas Berdych of Czech Republic in their men's singles quarter-final match at the Australian Open tennis tournament in Melbourne

 
Novak Djokovic of Serbia signs autographs for fans after defeating Tomas Berdych of Czech Republic in their men
Novak Djokovic of Serbia signs autographs for fans after defeating Tomas Berdych of Czech Republic in their men's singles quarter-final match at the Australian Open tennis tournament in Melbourne January 22, 2013. REUTERS/Daniel Munoz