Travis Kelce has spent most of the offseason "getting away,'' spending time with his girlfriend ... a teenager - Jazz Lewis, the son of former Baltimore Ravens Pro Bowler Jamal Lewis.

According to Jamal, his son was set to ... being seen at the workout that included Lewis. He has spent most of his offseason so far with his girlfriend, Taylor Swift. Now, he appears to be ...

Travis Kelce has spent most of the offseason "getting away,'' spending time with his girlfriend ... a teenager - Jazz Lewis, the son of former Baltimore Ravens Pro Bowler Jamal Lewis.