Jessica Biel's 9-Year-Old Son Silas Looks Just Like Mom in Rare Shot of the Duo at the 2024 US Open

The actress shares sons Silas, 9, and Phineas, 4, with husband Justin Timberlake

Jessica Biel's older son looks like he was having a ball alongside his mom at the US Open!

On Thursday, Aug. 29, the actress, 42, and her son Silas, 9, were photographed enjoying a tennis-filled day at the 2024 US Open Tennis Championship. In the rare snaps, the mother-son duo can be seen analyzing a tennis match from the stands and walking through the venue hand-in-hand.

The mom of two looked chic in her cream-colored Ralph Lauren pantsuit, white silk crop top, cream shoes, and, of course, a tennis necklace. The 9-year-old rocked a green and blue striped Ralph Lauren polo, khaki pants and blue Adidas sneakers.

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Related: Jessica Biel Says Son Silas, 9, Is Aware His 'Body's Changing': 'We're Talking About Deodorant'

Biel shares Silas as well as 4-year-old son Phineas with her husband Justin Timberlake.

Back in May, the boy mom participated in PEOPLE's Kids Interview ahead of the debut of her children's book, A Kids Book About Periods, where she revealed her favorite part about being a mother to Silas and Phineas.

“Hi, Miss Jessica! I’m Kai, I’m 5. What’s the best thing about being a boy mom?” the little boy asked Biel in the video.

“Oh my God, Kai! You’re adorable. I have a 9-year-old son and a 3-year-old son. The best thing about being a boy mom is playing," Biel responded.

"I think playing with my sons is the most fun. Wrestling, playing LEGO, building LEGO, swimming, playing sports, reading together," she said. "I love spending time with them, and I love getting down and dirty with them on the floor and just having fun. Not worrying about getting dirty or anything like that. I love that about being a boy mom."

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That same month, Biel shared that she's already started having conversations with Silas about puberty as a guest on SiriusXM's Let's Talk Off Camera with Kelly Ripa.

"We talk a lot about that already," Biel said. "We're all, as parents, I think building it up in our brains as to how our children are gonna react and I do feel like we don't give them enough credit for just kind of being able to understand and absorb it and then move on."

She continued, "We talk a lot about his body's changing a lot and he's experiencing that. He's experiencing growing pains. He has a hard time sleeping. He'll be waking up in the middle of the night. His legs hurt. His back hurts."

Adding that her son has gone from a little guy to almost a preteen, Biel said that she and Timberlake have noticed that Silas looks a little different.

"He's just growing. It's so amazing, so we talk a lot about that. We're talking deodorant. We're talking about hormones in our bodies and why we smell a different way, and so we're into it and we're on the precipice of all the big conversations I think."

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