Tampa Bay Buccaneers offensive lineman Ali Marpet announced his retirement from the NFL less than a month after competing in his first Pro Bowl.

The left guard, who is in his prime, announced the shocking decision on his Instagram account on Sunday. According to ESPN, the decision was based on his health issues.

“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,” Marpet tweeted. “This organization and the people surrounding it have helped not only fulfill a dream, but also helped build me into the person I am today. I’ve made Tampa Bay my home and I look forward to serving this community in the coming years.”

Marpet started nearly every game for the Buccaneers over the last two seasons, starting 29 regular-season games and six postseason games as a key member of a top-tier offensive line.

Prior to becoming a staple on Tampa Bay’s left side, Marpet’s performance at the 2015 NFL Combine elevated the 6-foot-4, 307-pound standout from Division III Hobart College to one of the draft’s biggest names.

At the start of his career, Marpet began 19 games at right guard over two seasons before shifting to center to start year three, which was cut short after 11 starts due to a knee injury.

The 28-year-old returned to the starting lineup at left guard in 2018, quickly emerging as one of the position’s best players, and subsequently becoming one of the NFL’s highest-paid guards after signing a five-year, $55.125 million contract in 2018.

According to NFL Network Insider Ian Rapoport, Marpet’s retirement will free nearly $10 million in cap space for the franchise this offseason.