CHARLESTON, S.C. (AP) — American Amanda Anisimova rallied after losing the opening set to beat top-seeded Aryna Sabalenka of Belarus 3-6, 6-4, 6-3 on Thursday and reach the quarterfinals of the Charleston Open.
In another surprise, CoCo Vandeweghe also reached the round of eight by defeating U.S. countrywoman and sixth-seeded Jessica Pegula 6-4, 3-6, 6-4.
Spain's Paula Badosa, the second seed, dropped her first set before fighting off American Claire Liu for a 3-6, 7-6 (8), 6-1 victory to move into the quarters.
No. 10 seed Belinda Bencic of Switzerland, the Olympic gold medalist last summer, defeated ninth-seeded Madison Keys of the United States 6-4, 6-4.
Fourth-seeded Ons Jabeur did double duty, winning twice Thursday to make the quarters. Jabeur's match with Emma Navarro was halted Wednesday because of severe weather with her leading 6-3, 5-2. The two returned Thursday where Jabeur won four straight points to close things out.