Mayfield agreed to terms on a three-year, $100 million deal with the Buccaneers on Sunday, Ian Rapoport of NFL Network reports.
Mayfield is on track to become an unrestricted free agent March 13, with the Buccaneers having placed the franchise tag on Antoine Winfield on Tuesday, Adam Schefter of ESPN reports.
Buccaneers' GM Jason Licht is expected to meet with Mayfield's agent, Tom Mills, during the NFL scouting combine next week, Rick Stroud of the Tampa Bay Times reports.
New Bucs offensive coordinator Liam Coen said Tuesday that Mayfield is one of the reasons he chose the job in Tampa Bay, Greg Auman of Fox Sports reports.
Mayfield completed 26 of 41 passes for 349 yards with three touchdowns and two interceptions and added two rushes for 15 yards in the Buccaneers' 31-23 divisional-round loss to the Lions on Sunday.
Mayfield (ankle/ribs) is listed as active for Monday's wild-card game versus the Eagles.
Mayfield (ankle/ribs) is slated to play in Monday's wild-card game against the Eagles, Jeff Howe of The Athletic reports.
Mayfield (ankle/ribs) is listed as questionable for Monday's wild-card game against the Eagles.
Mayfield (ankle/ribs) was limited at Friday's practice.
Mayfield missed Thursday's walkthrough due to ankle and rib injuries.