Tunisian Ons Jabeur, the No 3 seed, won against American Madison Keys 7-5, 6-1 to move into the quarter-finals of the San Jose Open at San Jose State University Tennis Center on Thursday night.
Jabeur, ranked No 5, will face the winner of the match between American Claire Liu and Russian Veronika Kudermetova, the No 9 seed, next.
Keys, ranked No 27, beat Chinese Shuai Zhang (6-4, 6-2) in the previous round.
San Jose WTA 500, other second-round results (San Jose State University Tennis Center, hard, USD 757.900, most recent results first):
- Coco Gauff vs. Naomi Osaka
- Maria Sakkari vs. Shelby Rogers
- Caroline Dolehide vs. Aryna Sabalenka
- Claire Liu vs. Veronika Kudermetova
- Paula Badosa (2) beat Elizabeth Mandlik (Q): 6-2, 5-7, 7-6 (5)
- Daria Kasatkina (7) beat Taylor Townsend (Q): 6-4, 6-0
- Amanda Anisimova beat Karolina Pliskova (8): 3-6, 7-5, 6-1