Former Detroit Lions linebacker DeAndre Levy has filed an injury grievance against the team, ESPN's Michael Rothstein reports.
Levy, who was released in March, played the last five games of last season after undergoing surgery to repair a torn meniscus suffered in Week 1.
He subsequently underwent surgery in April on the same knee, which required removal of cartilage and further meniscus repair.
The Lions cleared him the day before cutting him, Levy said, despite three other doctors telling him the knee was not healthy.
"I figured there was something wrong because they passed me on a physical when I couldn't even sit down to a chair or get into a linebacker stance at the time," Levy told ESPN.