tim tebow signed with team monday after news of the deal leaked sunday .
he inked deal in time to participate in team 's voluntary offseason program .
2007 heisman trophy winner played for patriots , jets and broncos in nfl .
has thrown 173 completions , 17 touchdowns and nine picks in 35 games .
terms of the deal with the 6-3 , 236-pound player have not been released .