Supporters watch the the men's singles final between Serbia's Novak Djokovic and Britain's Andy Murray on day 14 of the Australian Open tennis tournament in Melbourne on January 27, 2013. – Photo by AFP

Serbia's Novak Djokovic, left,holds his trophy after defeating Britain's Andy Murray, right, in the men's final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 27, 2013. – Photo by AP

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

Serbia's Novak Djokovic celebrates his win over Britain's Andy Murray in the men's final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 27, 2013. – Photo by AP

Britain's Andy Murray hits a return against Serbia's Novak Djokovic during the men's singles final on day 14 of the Australian Open tennis tournament in Melbourne on January 27, 2013. – Photo by AFP

Serbia's Novak Djokovic, right, is congratulated Britain's Andy Murray after winning the men's final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 27, 2013. – Photo by AP

Britain's Andy Murray hits a return against Serbia's Novak Djokovic during the men's singles final on day 14 of the Australian Open tennis tournament in Melbourne on January 27, 2013. – Photo by AFP

Serbia's Novak Djokovic makes a forehand return to Britain's Andy Murray during the men's final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 27, 2013– Photo by AP