Naomi Osaka makes winning return to Grand Slam tennis at U.S. Open

Returning after a mental health break, Osaka put together a 6-4, 6-1 victory Marie Bouzkova of the Czech Republic.

Naomi Osaka is back in Grand Slam action after a mental health break. Back to playing quite well, too. After a tight start to her first-round U.S. Open match on Monday night, the reigning champion grabbed eight of the last nine games and put together a 6-4, 6-1 victory over 87th-ranked Marie Bouzkova of the Czech Republic. Helped by a serve that reached 120 mph, Osaka saved all eight break points she faced and accumulated a 34-10 edge in total winners. She hadn't played at one of her sport's four major tournaments since May 30 at the French Open.