Elizabeth Olsen & Jon Hamm: U.S. Open Labor Day Sightings!

Elizabeth Olsen makes her way into the USTA Billie Jean King Tennis Center to attend day eight of the 2013 U.S. Open on Monday (September 2) in New York City.

The 24-year-old actress was joined for the Labor Day outing by her boyfriend Boyd Holbrook.

PHOTOS: Check out the latest pics of Elizabeth Olsen

Mad Men‘s Jon Hamm was also seen attending the event that day while Girls‘ Zosia Mamet was in attendance inside the Moet & Chandon suite with designer Rebecca Minkoff.

FYI: Zosia is wearing a Rebecca Minkoff bag.

10+ pictures inside of Elizabeth Olsen and others attending the 2013 U.S. Open…