NEW YORK, Sept. 4 (Xinhua) -- Following is the US Open women's singles quarterfinals line-up (prefix number denotes seeding):

17-Serena Williams, United States, vs 8-Karolina Pliskova, Czech Republic

3-Sloane Stephens, United States, vs 19-Anastasija Sevastova, Latvia

30-Carla Suarez Navarro, Spain vs 14-Madison Keys, United States

20-Naomi Osaka, Japan, vs Lesia Tsurenko, Ukraine

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