2021 U.S. Open: What to Watch on Monday

Naomi Osaka, the defending U.S. Open women’s champion, will face Marie Bouzkova in the first round.Credit...Seth Wenig/Associated PressHow to watch: From noon to 6 p.m. Eastern time on ESPN; 7 to 11 p.m. on ESPN2; and streaming on the ESPN app.

Matches to keep an eye on.

Because of the number of matches cycling through courts, these times are estimates and may fluctuate based on when earlier play is completed. All times are Eastern Standard.

Grandstand | 11 a.m.

Simona Halep vs. Camila Giorgi

Simona Halep, the 12th seed, pulled out of the Western & Southern Open earlier this month citing a tear in her right abductor. The two-time major champion is a tough competitor when healthy, but multiple…