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KEY BISCAYNE, FL - MARCH 23: Julie Coin of France returns a ball hit by Petra Martic of Croatia during day one of the Sony Ericsson Open at Crandon Park Tennis Center on March 23, 2010 in Key Biscayne, Florida. (Photo by Al Bello/Getty Images)

KEY BISCAYNE, FL - MARCH 23:  Julie Coin of France returns a ball hit by Petra Martic of Croatia during day one of the Sony Ericsson Open at Crandon Park Tennis Center on March 23, 2010 in Key Biscayne, Florida.  (Photo by Al Bello/Getty Images)