The Buccaneers elevated Pratt from the practice squad to the active roster Saturday, Jenna Laine of ESPN.com reports.
Pratt, a rookie seventh-round pick, was initially drafted by Green Bay but ended up on Tampa Bay's practice squad after late August roster cuts. It looks like he'll get a chance to work as an emergency No. 3 option behind Baker Mayfield and Kyle Trask versus Atlanta on Sunday.