Coco Gauff has a match at night and a possible showdown with Naomi Osaka if she wins it.

And the U.S. Open has some catching up to do.

Gauff and Osaka are in action during a fourth day of play that will be a little busier than usual as tournament officials try to reschedule matches that were postponed by rain Wednesday.

Gauff, who reached the fourth round at Wimbledon, opens the Thursday night session on Louis Armstrong Stadium against Timea Babos. Osaka plays there earlier against Magda Linette. If both win, it's the 15-year-old Gauff against the top-ranked defending champion in the third round on the weekend.

Rafael Nadal and his upset-filled half of the men's bracket are scheduled to play, along with Wimbledon champion Simona Halep and Caroline Wozniacki.