WATCH: Jason Kelce reveals why he returned to Philadelphia Eagles facility after retiring

Former Philadelphia Eagles star Jason Kelce recently revealed to his brother and Kansas City Chiefs star Travis about already returning to his former team's training facility one week after announcing his retirement from the National Football League (NFL).

Last week, Jason, 36, wept as he announced his retirement from football after 13 seasons and a Super Bowl win with the Philadelphia Eagles. 

His family, including Travis, 34, attended the emotional press conference as a show of support.

In the latest episode of the siblings' 'New Heights' podcast, the Chiefs tight end asked the former Eagles centre about his first week of retirement from the NFL, to which Jason replied saying he doesn't feel much of a difference and he has already returned to the facility.

"It feels zero different, I've actually still gone down the facility to get a couple weightlifting sessions in," Kelce said. "I'm a creature of habit, I don't know."

While he admitted to not feeling a change, he also predicted that the feeling might hit home once the season kicks off.

"I feel no different. I'm assuming once organized team activities start up, training camps and the season starts rolling around, it will really start to hit a little bit more.

"But one week in, not much different to be honest with you."

NFL teams typically return to start the serious build-up for a season in July, meaning the older Kelce brother has plenty of time to come to terms with his decision before the practice sessions begin.

Fans expect Jason to enter the sport analysis industry as he reportedly met with several broadcasters during the Super Bowl in Las Vegas.

He is also being filmed by Amazon Prime, the company behind his own 'Kelce' documentary last year catch his next steps on film.