KEY BISCAYNE, FL - MARCH 24: Caroline Wozniacki of Denmark returns a shot to Vania King during the Miami Open presented by Itau at Crandon Park Tennis Center on March 24, 2016 in Key Biscayne, Florida. (Photo by Matthew Stockman/Getty Images)

KEY BISCAYNE, FL - MARCH 24:  Caroline Wozniacki of Denmark returns a shot to Vania King during the Miami Open presented by Itau at Crandon Park Tennis Center on March 24, 2016 in Key Biscayne, Florida.  (Photo by Matthew Stockman/Getty Images)