The tight end’s jersey sales spiked stateside after the singer’s September appearance at a Chiefs game.

Travis Kelce isn’t the only one whose jersey sales have soared amid his romance with Taylor Swift — his brother Jason, who plays center for the Philadelphia Eagles, has recently seen a bump too … in the United Kingdom, where soccer is largely popular.

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Jason shed light on both his and Travis’ jerseys being the top two selling jerseys in the U.K. on the Wednesday (Dec. 13) installment of their joint New Heights podcast.

“We are the No. 1 and No. 2 top jersey in the United Kingdom,” Jason told his younger brother. “Trav, you got the No. 1 jersey — good to know we’re still No. 1 at something these days — followed by me at No. 2. This is crazy — it’s Travis, then me, then Pat Mahomes and Jalen Hurts.”

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Travis agreed, saying that their latest jersey boost “doesn’t make any sense. Either way, I’ll take it.” When Jason inquired if there were a lot of Swifties residing in the U.K., the Kansas City Chiefs tight end replied, “Gotta be, only reasonable solution because of all of this.”

While Travis’ jersey boost comes amid his romance with Swift, Jason joked that his heightened jersey sales likely comes from people mixing him and his brother up. “They’re all Kylie Kelce fans, so they’re supporting [Jason’s wife] Kylie [Kelce],” he joked, before giving her and Swift credit. “Shoutout to Kylie, shoutout to Taylor. Thank you, guys.”

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This isn’t the first time Travis has experienced a large boost in his jersey sales. When Swift attended Kansas City Chiefs’ Sept. 24 game, it was reported that his jersey saw a 400% increase in sales.

“Yesterday, Travis Kelce was one of the top five selling NFL players and saw a nearly 400% spike in sales throughout the Fanatics network of sites, including NFLShop.com,” a spokesperson for the NFL’s official e-commerce partner, Fanatics, said in a statement obtained by CNN.

Watch the Kelce brothers’ latest episode of New Heights in the video above.