MELBOURNE, AUSTRALIA - JANUARY 24: Roger Federer of Switzerland drinks during a break in his quarter final match against Juan Martin Del Potro of Argentina during day nine of the 2012 Australian Open... more 
MELBOURNE, AUSTRALIA - JANUARY 24: Roger Federer of Switzerland drinks during a break in his quarter final match against Juan Martin Del Potro of Argentina during day nine of the 2012 Australian Open at Melbourne Park on January 24, 2012 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images) less 
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Getty Images | Photo By Clive Brunskill / Getty Images
Tue, Jan 24, 2012 2:39 AM EST