Bears legend Gale Sayers sued the NFL on Friday claiming the league negligently handled his repeated head injuries during his seven-year career.
Sayers a Hall of Fame running back who played with the Bears from 1965 to 1971 said in the lawsuit filed Friday in U.S. District Court in Chicago that he suffered headaches and short-term memory loss after retirement.

Sayers says he sometimes was sent back into games after suffering concussions and that the NFL overall didn’t do enough to protect him from the “devastating concussive head traumas” according to the lawsuit.

Last month the NFL reached a $765 million settlement with more than 4500 former players who had filed suit against the league accusing it of hiding the dangers of brain injury while profiting from the game’s violence. The NFL admitted no wrongdoing in agreeing to the settlement that does not include current players.