Williams, who beat the qualifier Mona Barthel, has not dropped a set through four rounds. She will next face 24th-seeded Anastasia Pavlyuchenkova.
BEN ROTHENBERG, New York Times: Tennis
Sat, 01/21/2017 - 10:33pm
Williams, who beat the qualifier Mona Barthel, has not dropped a set through four rounds. She will next face 24th-seeded Anastasia Pavlyuchenkova.