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Sienna Miller sits in a private box with her boyfriend, director Bennett Miller, at the finals of the 2016 U.S. Open on Sunday (September 11) at the USTA Billie Jean King National Tennis Center in New York City.

The couple was joined in the box by Peter Sarsgaard, Josh Groban, Debra Messing, and James Spader, among others.

Also spotted in the crowds at the match were Damian Lewis and Kevin Spacey (with his manager Evan Lowenstein).

Sienna starred in the movie Foxcatcher, which was directed by Bennett. He previously was linked to Ashley Olsen.

Jessica Alba sits with her daughters Honor, 8, and Haven, 5, while attending the Women’s Singles Final Match during the 2016 U.S. Open at the USTA Billie Jean King National Tennis Center on Saturday (September 10) in Flushing, New York.

The cute family was joined at that day’s festivities by Jon Hamm, Garrett Hedlund, Debra Messing, Bruce Willis, Karolina Kurkova, and Mariska Hargitay.

A couple days earlier, Jessica was spotted running errands in a stylish white dress in the Big Apple.

30+ pictures inside of Jessica Alba with her daughters at the U.S. Open…More Here! »

Serena Williams makes it look easy while playing during the Women’s Singles Quarterfinals Match at the 2016 US Open at the USTA Billie Jean King National Tennis Center on Wednesday (September 7) in Queens, N.Y.

The 34-year-old tennis pro beat Simona Halep of Romania that day.

PHOTOS: Check out the latest pics of Serena Williams

“I knew that I could play a lot better,” Serena said on court (via USA Today). “I lost my rhythm in the second set. I knew that I had to step it up in the third set.”

She continued, “I was rather positive today, and that’s not normal. I’m just going to go with it.”

25+ pictures inside of Serena Williams playing in the U.S. Open…More Here! »

Odell Beckham Jr. keeps it casual in a white tank while heading to the 2016 U.S. Open held at the USTA Billie Jean King National Tennis Center on Sunday (September 4) in Queens, N.Y.

This is the first time we’ve seen the 23-year-old Giants player since Lena Dunham apologized to him for the comments she made about their experience at the Met Gala.

PHOTOS: Check out the latest pics of Odell Beckham Jr.

Also in attendance that day was model Ashley Graham, who sat alongside her husband Justin Ervin.