Switzerland's Roger Federer waves to the crowd after his fourth round win over Canada's Milos Raonic at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 21, 2013. (AP Photo/Dita Alangkara)

Associated Press
Switzerland's Roger Federer waves to the crowd after his fourth round win over Canada's Milos Raonic at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 21, 2013. (AP Photo/Dita Alangkara)
Switzerland's Roger Federer waves to the crowd after his fourth round win over Canada's Milos Raonic at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 21, 2013. (AP Photo/Dita Alangkara)
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