Myers was a defensive lineman for the Dallas Cowboys from 1998-2002 before finishing up his 10-year NFL career with Cleveland Browns, Denver Broncos and Cincinnati Bengals.
Now, he's suing the NFL for negligence, fraud and conspiracy in its handling of head injuries sustained by its players. He filed the suit in a Houston court on Friday.
Myers suffers migraine headaches and other health problems while claiming his short-term memory has also been affected by numerous concussions.
Myers finished his career with 259 tackles and 15.5 sacks with one interception.
The NFL isn't taking Myers' suit very seriously, claiming it has "no merit", according to the Associated Press. Myers' suit is one of several recently that have been filed by former players in regards to the way the league has handled concussions, particularly in the past.