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NEW YORK, NY - SEPTEMBER 09:  Melanie Oudin (L) and Jack Sock (R) of the United States celebrate after defeating Eduardo Schwank and Gisela Dulko of Argentina during Day Twelve of the 2011 US Open at the USTA Billie Jean King National Tennis Center on September 9, 2011 in the Flushing neighborhood of the Queens borough of New York City. Oudin and Sock defeated Schwank and Dulko 7-6, 4-6, 10-8.  (Photo by Jared Wickerham/Getty Images for USTA)