Former Green Bay Packers quarterback and Hall of Famer Brett Favre was one of the toughest quarterbacks in the NFL, and it took a significant toll on his health despite the fact he didn't miss many games.
During an appearance on The Bubba Army radio show this week (h/t TMZ Sports), Favre said he believes he suffered "thousands" of concussions during his 20-year NFL career.
"Concussions happen all the time," Favre said. "You get tackled and your head hits the turf, you see flashes of light or ringing in your ears but you're able to play—that's a concussion.