Serena Williams knocked off Kaia Kanepi, who ousted No. 1 seed Simona Halep in the first round, in three sets on Sunday. Later that night, Sloane Stephens cruised past Elise Mertens.
Serena Williams knocked off Kaia Kanepi, who ousted No. 1 seed Simona Halep in the first round, in three sets on Sunday. Later that night, Sloane Stephens cruised past Elise Mertens.