Olivia Wilde & Jason Sudeikis: U.S. Open First Round Spectators!

Olivia Wilde cuddles up to her fiance Jason Sudeikis during a first round match with Serena Williams on Day One of the 2013 U.S. Open at USTA Billie Jean King National Tennis Center on Monday (August 26) in New York City.

Earlier in the day, the 29-year-old actress and the 37-year-old actor, who were seen inside the Emirates suite, attended the 2013 USTA Serves Opening Night Gala.

PHOTOS: Check out the latest pics of Olivia Wilde

“Thanks to all you buddies going to see @DBmovie in theaters we are expanding to 10 more cities! Words can’t express how exciting this is,” Olivia tweeted on the same day about her latest flick Drinking Buddies.

FYI: Jason is wearing a Junk Food Clothing NFL T-Shirt.

15+ pictures inside of Olivia Wilde and Jason Sudeikis watching a first round match at the U.S. Open…