TRAVIS EVOLUTION Fitz & Whit
Jason Kelce says Taylor Swift has had a "staggering" impact on Travis Kelce ... revealing his little brother has grown up tremendously since he began dating the pop star.
Jason got candid about the Chiefs tight end's relationship with Taylor on Tuesday's episode of the "Fitz & Whit" podcast ... explaining to former NFL stars Ryan Fitzpatrick and Andrew Whitworth he's noticed a huge change in his bro since he began shacking up with Swift nearly two years ago.