Third-round pairs have been defined at the US Open, as the bottom half of second-round action completed on Thursday. The biggest casualty on Day 4 was second-seeded Caroline Wozniacki, as the Dane fell to Ukrainian Lesia Tsurenko 6-4 6-2. Seed No.11 Daria Kasatkina of Russia also exited the draw, at the hands of Belarusian Aliaksandra Sasnovich, 6-2 7-6(3).
All the other seeded players advanced on Thursday, including seed No.22 Maria Sharapova, who didn’t allow Sorana Cirstea to disrupt her perfect record in night sessions at the US Open.