Taylor Swift fans think Travis and Jason Kelce made secret hints about NFL star going out with the singer in September as podcast clip resurfaces with sister-in-law Kylie’s dating tips: ‘You’re doing great on your own, Trav!’

Fans of Travis Kelce and Taylor Swift have come up with a new theory about when the couple started dating after the singer gave an interview to TIME magazine this week.

Swift was named TIME's Person of the Year and gave her side of the story for the first time about her relationship with Chief tight end.

Speaking about the first time she went to see him play, against the Chicago Bears on September 24, she said: By the time I went to that first game, we were a couple. We would never be psychotic enough to initiate a first date.'

It's led Swifties to theorize that they've been dating since July — and partly through a clip from Travis and Jason Kelce's New Heights episode later in the summer.

It shows Jason and his wife Kylie giving Travis dating advice, albeit with what now appears to be a few knowing grins that went unnoticed at the time.

Travis Kelce got dating advice from sister-in-law Kylie on New Heights before it emerged he was dating pop star Taylor Swift

Swift and Kelce went official while she was watching him play against the Bears on September 24

The couple has gone from strength to strength in their relationship since then

“I didn't try to frame you and I never would, no,” she said. “I think you're doing just fine on your own, Trav. You have no problem.' At that moment, Jason smiles broadly.

Travis and Jason also joke about a “Love Story” a few times, both times with big grins — the name of one of Swift's biggest hits.

A Swift fan shared the clip on As usual, just look at their grins when they talk about 'travisting Travis'!! This was recorded in early September!

Ironically, Kelce is also wearing a John Mayer t-shirt.

Swift and Kelce dated when she was 19 and he was 31, and her song “Dear John” is about the impact that relationship had on her.

But the Swifties think there was a code behind that too, with Twitter saying: “The fact that Travis was wearing that shirt while he was already talking to Taylor,” followed by a skull emoji.

But a fan replied to them and said: 'I guess this was to throw people off track.'

Taylor could be at Travis' next NFL game on Sunday afternoon, when the Chiefs host the Buffalo Bills at Arrowhead Stadium.

The Chiefs and Kelce are looking to get back to winning ways after being defeated by the Green Bay Packers on Sunday night.