Tennis has many celebrity fans, and a number of them can be seen watching from the stands during Grand Slams, especially for the US Open. Ansel Elgort, whose brother is a "major tennis player," has been coming to Flushing Meadows for a few years and showed some love for the tournament.

"I've been coming to the US Open for awhile...tennis is in my family and it's really cool to be invited to the US Open now, and I'm honored," he said. When asked on his favorites for winning this year, the Baby Driver star admitted that his answers "aren't very original."

"Obviously, I'm always excited about Roger Federer, and I love Djokovic...he's not here, which is too bad...," Elgort said. "I think Federer and Nadal are my favorite, I mean, I'm not that original. Also, Jack Sock as an American, gotta have an American in there."

Nadal and Federer both won their first round encounters, while Sock was victim to Australia's Jordan Thompson.