Serena Williams, of the United States, walks off the court as it begins to rain during her match against Caroline Garcia, of France, at the Sony Open tennis tournament in Key Biscayne, Fla., Saturday, March 22, 2014. (AP Photo/Alan Diaz)
Caroline Garcia, of France, reaches as she tries to return to Serena Williams, of the United States, at the Sony Open tennis tournament in Key Biscayne, Fla., Saturday, March 22, 2014. (AP Photo/Alan Diaz)
Serena Williams, of the United States, returns to Caroline Garcia, of France, at the Sony Open tennis tournament in Key Biscayne, Fla., Saturday, March 22, 2014. (AP Photo/Alan Diaz)
Serena Williams, of the United States, reacts to a play against Yaroslava Shvedova, of Kazakhstan, during the Sony Open tennis tournament, Thursday, March 20, 2014, in Key Biscayne, Fla. Williams won 7-6 (7), 6-2. (AP Photo/Luis M. Alvarez)
Yaroslava Shvedova, of Kazakhstan, celebrates after scoring a point against Serena Williams at the Sony Open tennis tournament in Key Biscayne, Fla., Thursday, March 20, 2014. (AP Photo/Alan Diaz)
Serena Williams returns to Yaroslava Shvedova, of Kazakhstan, at the Sony Open tennis tournament in Key Biscayne, Fla., Thursday, March 20, 2014. (AP Photo/Alan Diaz)