Key Biscayne

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Garbine Muguruza, of Spain, hits a return to Christina McHale during the Miami Open tennis tournament, Friday, March 24, 2017, in Key Biscayne, Fla. (AP Photo/Lynne Sladky)

Elena Vesnina, of Russia, looks out on the court during a rain shower in a break in a match against Ajla Tomljanovic, of Croatia, at the Miami Open, Friday, March 24, 2017 in Key Biscayne, Fla. (AP Photo/Wilfredo Lee)

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Lucie Safarova, of the Czech Republic, prepares to return a shot to Daria Gavrilova, of Australia, during a tennis match at the Miami Open, Thursday, March 23, 2017 in Key Biscayne, Fla. (AP Photo/Wilfredo Lee)

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Caroline Wozniacki, of Denmark, shakes hands with Varvara Lepchenko, of the United States, after defeating her 6-1, 6-2 during the Miami Open tennis tournament, Thursday, March 23, 2017, in Key Biscayne, Fla. (AP Photo/Luis M. Alvarez)

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Marcel Granollers, of Spain, returns a shot from Borna Coric, of Croatia, during a tennis match at the Miami Open, Thursday, March 23, 2017 in Key Biscayne, Fla. (AP Photo/Wilfredo Lee)

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Lucie Safarova, of the Czech Republic, returns a shot from Daria Gavrilova, of Australia, during a tennis match at the Miami Open, Thursday, March 23, 2017 in Key Biscayne, Fla. (AP Photo/Wilfredo Lee)

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A family shields themselves from the sun as they watch a tennis match between Marcel Granollers, of Spain, and Borna Coric, of Croatia, at the Miami Open, Thursday, March 23, 2017 in Key Biscayne, Fla. (AP Photo/Wilfredo Lee)

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In this file photo, a raccoon peers down from a tree at Bill Baggs Cape Florida State Park, Wednesday, Jan. 14, 2015, in Key Biscayne, Fla. (AP Photo/Wilfredo Lee) ** FILE **