Serbia's Novak Djokovic reacts after winning the second set during the men's final against Britain's Andy Murray at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 27, 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. Dita Alangkara / AP
Novak Djokovic of Serbia kicks the tennis ball during the men's final against Andy Murray of Great Britain at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. Narendra Shrestha / EFE
Andy Murray of Great Britain in action during his match against Novak Djokovic of Serbia in the men's singles final of the Australian Open tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. MARK DADSWELL / EFE
Andy Murray of Great Britain hits a forehand during the men's final against Novak Djokovic of Serbia at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. Dennis Sabangan / EFE
Novak Djokovic of Serbia in action during his match against Andy Murray of Great Britain in the men's singles final of the Australian Open tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó
6-7, 7-6, 6-3, 6-2. JOEY CASTRO / EFE
Andy Murray of Great Britain pumps fist during the men's final against Novak Djokovic of Serbia at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. Narendra Shrestha / EFE
Novak Djokovic of Serbia hits a forehand during the men's final against Andy Murray of Great Britain at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. Narendra Shrestha / EFE
Novak Djokovic of Serbia in action during his match against Andy Murray of Great Britain in the men's singles final of the Australian Open tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. JOE CASTRO / EFE
Novak Djokovic of Serbia hits a backhand during the men's final against Andy Murray of Great Britain at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. Barbara Walton / EFE
Andy Murray of Great Britain receives medical attention during the men's final against Novak Djokovic of Serbia at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. Dennis Sabangan / EFE
Novak Djokovic of Serbia pumps fist during the men's final against Andy Murray of Great Britain at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó 6-7, 7-6, 6-3, 6-2. Dennis Sabangan / EFE
Andy Murray of Great Britain in action during his match against Novak Djokovic of Serbia in the men's singles final of the Australian Open tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó
6-7, 7-6, 6-3, 6-2. MARK DADSWELL / EFE
Novak Djokovic of Serbia in action during his match against Andy Murray of Great Britain in the men's singles final of the Australian Open tennis tournament in Melbourne, Australia, 27 January 2013. Djokovic ganó
6-7, 7-6, 6-3, 6-2. MARK DADSWELL / EFE