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KEY BISCAYNE, FL - APRIL 02: Serena Williams of the United States shakes hands at the net after her three set victory against Simona Halep of Romania in their semi final match during the Miami Open Presented by Itau at Crandon Park Tennis Center on April 2, 2015 in Key Biscayne, Florida. (Photo by Clive Brunskill/Getty Images)

KEY BISCAYNE, FL - APRIL 02:  Serena Williams of the United States shakes hands at the net after her three set victory against Simona Halep of Romania in their semi final match during the Miami Open Presented by Itau at Crandon Park Tennis Center on April 2, 2015 in Key Biscayne, Florida.  (Photo by Clive Brunskill/Getty Images)