Source: Tim Tebow signs one-year contract with Jacksonville Jaguars as tight end

JACKSONVILLE, Fla. -- Tim Tebow's attempted NFL comeback has officially begun.

The former Heisman Trophy-winning quarterback signed a one-year deal with the Jacksonville Jaguars on Thursday as a tight end, a source told ESPN's Adam Schefter, re-uniting him with Urban Meyer, his former head coach at the University of Florida.

Tebow will be on the field Thursday for the team's offseason program as he sets out to compete for a roster spot, per the source.

Tebow, who will turn 34 in August, hasn't played football since the 2015 NFL preseason and has spent the past six years working as a broadcaster on the SEC Network and working on his professional baseball career. He was adamant about being a…