NEW YORK - AUGUST 29: Roger Federer of Switzerland returns ball during 1st round match against Santiago Giraldo of Columbia at USTA Billie Jean King National Tennis Center on August 29, 2011 in NYC
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NEW YORK - AUGUST 29: Roger Federer of Switzerland returns ball during 1st round match against Santiago Giraldo of Columbia at USTA Billie Jean King National Tennis Center on August 29, 2011 in NYC