Ragnow Explains Retirement Decision, Failed Physical After Hamstring Injury

Ragnow Explains Retirement Decision, Failed Physical After Hamstring Injury

Frank Ragnow, the Detroit Lions center who retired abruptly during the summer of 2025, has spoken publicly about both the circumstances that led to his decision and a subsequent failed attempt to return to the field. Ragnow, 30, said he never intended to retire when he did, telling ESPN he had been trying to convince himself he could continue playing before his body forced the issue. A November comeback bid ended when he failed a physical due to a Grade 3 hamstring strain, an injury he said he knew was sore but did not realize was severe.

“I did not plan on retiring in the middle of the summer, believe it or not,” Ragnow said, according to ESPN. He described a state of paralysis in which he was trying to will himself back for teammates and fans, but ultimately concluded the physical cost outweighed the return, particularly with family considerations in mind. He added that he had stayed in shape following his retirement, which prompted the November attempt to rejoin the Lions, though he acknowledged he should have heeded warning signs before undergoing the physical.

Ragnow spent his entire seven-year NFL career with Detroit after the club selected him in the first round of the 2018 draft. Following the 2021 season, Lions general manager Brad Holmes signed him to a four-year, $54 million contract that made him the highest-paid center in the league at that time. He earned four Pro Bowl selections across his career and, in what proved to be his final active season, played in 16 games despite a partially torn pectoral muscle.

With Ragnow’s playing career now at a close following the failed physical, the Lions face a long-term void at one of the most demanding positions on the offensive line. No timeline or plan for replacing him has been reported.