Serbia's Novak Djokovic holds his trophy after defeating Britain's Andy Murray in the men's final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 27, 2013. (AP Photo/Aaron Favila)

Photo by: Aaron Favila

Serbia's Novak Djokovic holds his trophy after defeating Britain's Andy Murray in the men's final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 27, 2013. (AP Photo/Aaron Favila)