Switzerland's Roger Federer serves to France's Benoit Paire during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 15, 2013. (AP Photo/Andy Wong)

Associated Press
Switzerland's Roger Federer serves to France's Benoit Paire during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 15, 2013. (AP Photo/Andy Wong)
Switzerland's Roger Federer serves to France's Benoit Paire during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 15, 2013. (AP Photo/Andy Wong)
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