The Latest: Heat rule in effect for women at steamy US Open

              Jelena Ostapenko, of Latvia, returns to Andrea Petkovic, of Germany, during the first round of the U.S. Open tennis tournament, Tuesday, Aug. 28, 2018, in New York. (AP Photo/Andres Kudacki)

NEW YORK (AP) — The Latest on the U.S. Open tennis tournament (all times local):

12 a.m.

Maria Sharapova held on to edge 39-year-old Patty Schnyder, the oldest female qualifier in Grand Slam history, in the U.S. Open’s first round.

Sharapova let a big second-set lead slip away, then needed four match points to close out Schnyder 6-2, 7-6 (6).

This was their ninth career meeting, but first in 10 years. Schnyder initially retired in 2011, but is now back on tour.