TAMPA, Fla. — Pro Bowl offensive lineman Ali Marpet caught the Tampa Bay Buccaneers off guard Sunday, announcing his retirement from the NFL at age 28.

A second-round draft pick out of tiny Hobart College in 2015, Marpet became a starter at right guard as a rookie. He transitioned to center the following season and later settled in at left guard, where he helped the 2020 Bucs win the Super Bowl and was a first-time Pro Bowl selection in 2021.

Marpet announced the decision on Instagram. He did not give a reason for the surprising move.

“After seven formidable years with the Tampa Bay Buccaneers, I’ve come to the decision to retire from the game that has given me so much. This organization and the people surrounding it have helped build me into the person I am today,” Marpet wrote.

“To the coaches and teammates, family and friends, an Instagram post simply can’t express the profound impact you’ve had on me,” Marpet added. “I’m eternally grateful. Thank you, Tampa Bay.”

The move comes just weeks after quarterback Tom Brady announced his retirement after 22 seasons.