Taylor Swift’s younger brother, Austin Swift, might just be off the market.

Austin kept a low profile — he seemed to be dressed as Santa Claus — as he appeared alongside rumored girlfriend Sydney Ness while attending the Kansas City Chiefs game on Christmas in 2023. His sister, Taylor, and their parents, Scott and Andrea Swift, were also in attendance.

Austin has been romantically linked to Ness since September 2022, when they were first spotted holding hands during a walk around New York City. The duo have kept their relationship out of the public eye, rarely getting spotted together.

Ness did, however, attend Taylor’s iconic 4th of July celebration in July 2023. She was spotted wearing a blue bikini in a photo shared via the singer’s Instagram at the time.

While Ness’ Instagram account is full of her modeling photos, Austin barely uses social media, so there are no pictures of their rumored romance thus far.

However, the pair were seen showing Taylor some support in her new relationship when attending a separate Chiefs game in October 2023. At the time, Austin walked alongside Ness and Blake Lively as Swift entered MetLife stadium for a Chiefs game against the New York Jets.

Travis Kelce had a lot of compliments for Taylor Swift’s brother, Austin Swift, on the Friday, December 29, episode of his and brother Jason Kelce’s “New Heights” podcast.

Jason’s wife, Kylie Kelce, gave Austin, 31, the honor of “New Heights Holiday Stamp of the Week.”

“I was going to pick on Travis. I was going to say whoever wore the Santa suit,” Kylie, 31, said at the end of the episode when picking someone to give the coveted award to.

“That was Austin Swift,” Travis replied. “Well, it was Santa.”

Kylie commended Austin for wearing the Santa outfit to Arrowhead Stadium in Kansas City on Monday, December 25, as the Chiefs played the Las Vegas Raiders, but unfortunately lost the match.

“I respect a full commit,” Kylie said, to which Travis replied: “It was a full commit. He killed it. He actually made me feel like a child because his gift to me was straight out of the bag.”

Travis then revealed what Austin’s gift was.

“[He] handed me a VHS of my favorite football movie of all time … Little Giants,” Travis revealed.