CHARLESTON, S.C. (AP) Laura Siegemund of Germany beat Venus Williams 6-4, 6-7 (3), 7-5 on Wednesday to win her second three-set match in three days and move on to the third round at the Volvo Car Open.
Elsewhere, Russian Daria Kasatkina outlasted Puerto Rican Olympic champion Monica Puig 6-0, 6-7 (3), 6-2. Kasatkina, who came close to making the semifinals here last year, hit 19 winners with 18 unforced errors to finally escape after just over 2 hours on court. Puig hit more winners (25) but also had 41 errors, including on match point.
In other matches, Latvia's Jelena Ostapenko defeated Greece's Maria Sakkari in three sets and Hungarian Fanny Stollar stunned No.4 seed Elena Vesnina, 7-6 (7), 7-6 (3). Vesnina, of Russia, twice led a by a break in the opening set but struggled to convert break points. Stollar hit 13 aces to keep herself in front for most of the match.
