U.S. Open 2019: Matches to Watch on Tuesday

How to watch: ESPN, noon Eastern; streaming on ESPN+ and ESPN3, 11 a.m.

How to get there: Take the 7 subway line or the Long Island Rail Road to Mets-Willets Point.

Tuesday’s schedule: Men | Women

At noon, Naomi Osaka, the world No. 1, will step out onto Arthur Ashe Stadium to start her title defense with a different coach, a suspect left knee and a hope to reclaim the excitement she brought into last year’s run.

Osaka followed up her title at the U.S. Open last year with the championship at the Australian Open in 2019, but she has struggled to play at the same level since then. She has shown some sparks during the hardcourt season this summer, reaching the quarterfinals at both the tournaments…