FRIDAY’S KEY MATCHES

At USTA Billie Jean King National Tennis Center, New York Play begins on all courts at 11 a.m. ET

Arthur Ashe Stadium

Petra Kvitova, Czech Republic, vs. Caroline Garcia, France Denis Shapovalov, Canada, vs. Kyle Edmund, Britain

Maria Sakkari, Greece, vs. Venus Williams, USA

Night session (7 p.m.)

Mischa Zverev, Germany, vs. John Isner, USA

Sofia Kenin, USA, vs. Maria Sharapova, Russia

Louis Armstrong Stadium

Nicolas Mahut, France, vs. Pablo Carreno Busta, Spain Ashleigh Barty, Australia, vs. Sloane Stephens, USA Magdalena Rybarikova, Slovakia, vs. Garbine Muguruza, Spain

Not before 5 p.m.

Sam Querrey, USA, vs. Radu Albot, Moldova