McCown started 11 games for the Buccaneers in 2014, including their final eight. He threw for 2,206 yards, 11 touchdowns and 14 interceptions while completing 56.3 percent of his passes.
The 35-year-old signed with Tampa Bay last March as an unrestricted free agent. He's played for five different teams in his 12-year career, including time with the Chicago Bears under current Buccaneers coach Lovie Smith.
The Buccaneers hold the No. 1 pick in the 2015 NFL draft. SI's latest mock draft has Tampa Bay choosing Oregon quarterback Marcus Mariota with that pick.
- Molly Geary