Travis Kelce arrives for Chiefs training camp after whirlwind offseason with Taylor Swift on her Eras Tour as his signature preseason mustache returns

Travis Kelce's summer of romance has finally come to an end as the Kansas City Chiefs tight end returned to the NFL grind Sunday. 

Kelce has enjoyed a whirlwind offseason following his pop superstar girlfriend Taylor Swift across Europe as she performs her Eras Tour to sold-out crowds across the continent. 

However, the time has come for the loved-up Super Bowl winner to turn his focus back to the field as he arrived for his first session of the Chiefs' 2024 training camp Sunday. 

Kelce was spotted coming down the iconic hill in St Joseph, Missouri, where the Chiefs' preseason training facilities are located, for his 12th season in a video shared by Fox4KC's Harold Kuntz. 

Kelce was seen rocking his signature 'El Travador' mustache, which has made a return for the preseason once again.  

Sunday marked the Chiefs first full day of training camp after Kansas City's veterans descended on St Joseph. 

The quarterbacks, including Patrick Mahomes, and rookies, such as Xavier Worthy and rugby-star-turned-NFL-hopeful Louis Rees-Zammit, had already been in action at Missouri Western State University for pre-camp throughout the week. 

However, Kelce left it until the very last minute to report for camp, trying to soak up every second of quality time with his songstress girlfriend. 

Kelce has been busy jetting around Europe with the Love Story songstress this summer - catching shows in Paris, London, Dublin, Amsterdam and Germany. 

He sent the London fans wild on Night 3 of Swift's sold-out run at Wembley Stadium when he appeared on stage as part of the back-up dance crew.

A 90,000-strong crowd screamed as he swept Swift off her feet and carried her across the stage.

Most recently, the three-time Super Bowl champ was spotted by eagle-eyed Swifties at her concert in Gelsenkirchen, Germany on Wednesday - just three days before he had to report to Chiefs training camp. 

It marked Kelce's 13th appearance at one of his girlfriend's shows since they started dating last summer.

Not only is 13 Swift's favorite number, but the pop megastar also attended 13 of Kelce's Chiefs game last season.

Kelce's coach, Andy Reid, recently shook off any concerns about extra attention surrounding Kelce as training camp gets underway for the upcoming football season.

'I think it's great for him. He can handle it. As a matter of fact, I think he probably loves it to a point. I think there's a great escape for him,' Reid said of Kelce's fame.

'I said that about Taylor, too. I mean, she comes to the game, she can kind of escape having to be the show. When he goes to her concerts, she's the star,' he went on.

'That podcast of theirs is ridiculous, so he's gotten a lot of notoriety for that,' Reid added, referencing the New Heights podcast he co-hosts with his brother Jason .

'He's an outgoing guy. I mean, he comes into a room, he's going to light the room up. Everybody's his best friend. Until you prove him wrong, everybody's a friend,' Reid continued of Travis.

'He can handle it, it's not something that [he's] been given that he can't handle.'

Kelce's heartbreak at being separated from Swift may have been soothed by a sweet message he received upon arrival at camp. 

He had a touching note waiting for him in his locker when he returned to Chiefs HQ for training camp this week. 

Actors Tyler Hynes and Hunter King, who are starring in the upcoming Hallmark movie Holiday Touchdown: A Chiefs Love Story, revealed Travis' mom Donna encouraged them to sneak 'a note into Trav's locker.'

'I wrote the lyrics to Friends in Low Places [by Garth Brooks] because he sang it at the [Super Bowl] parade that I was at, and I said, "Don't ever change,"' Hynes said in an interview with People.