NEW YORK, NY - SEPTEMBER 10: Editor-in-chief of American Vogue Anna Wintour attends the match between Roger Federer of Switzerland and Novak Djokovic of Serbia during Day Thirteen of the 2011 U.S. Open at the USTA Billie Jean King National Tennis Center on September 10, 2011 in the Flushing neighborhood of the Queens borough of New York City.  (Photo by Mike Stobe/Getty Images for USTA)