THURSDAY’S KEY MATCHES

At Play USTA begins Billie on Jeanall courtsKing Nationalat 11 a.m. TennisET Center, New York Elina Svitolina, Ukraine, vs. Evgeniya Rodina, Russia

Not before 1 p.m.

Karolina Pliskova, Czech Republic, vs. Nicole Gibbs, USA Roger Federer, Switzerland, vs. Mikhail Youzhny, Russia Night session (7 p.m.)

Ons Jabeur, Tunisia, vs. CoCo Vandeweghe, USA Rafael Nadal, Spain, vs. Taro Daniel, Japan Louis Armstrong Stadium

Jelena Ostapenko, Latvia, vs. Sorana Cirstea, Romania Andrey Rublev, Russia, vs. Grigor Dimitrov, Bulgaria Taylor Fritz, USA, vs. Dominic Thiem, Austria Not before 5:30 p.m.

Tatjana Maria, Germany, vs. Madison Keys, USA