http://sports.espn.go.com/chicago/nfl/news/story?id=5788514 Jim McMahon's memory is toast after years of taking hits to the head. Interesting to see how common this is among former and current players in the NFL. Troy Aikman and Steve Young are two guys that are probably going to be in the same boat.
Chris Nowinski, who founded the Sport Legacy Institute, was a football player at Harvard and later a WWE wrestler. He was even on some WWE reality show in which they picked the next WWE star from a pool of amateurs. He's actually been on Isaac and Suke's show multiple times. I think it's pretty cool that he would make this his life's mission. He's a very bright guy who noticed his own memory loss after a few years of taking blows to the head in the WWE.