College football player who committed suicide had brain injury - CNN.com

I remember this story a few months back about a Pennsylvania lineman, at 21 only he had developed severe CTE (chronic traumatic encephalopathy). At first it's usually only found in boxers or NFL veterans that have long careers.

Thomas was a lineman, a position that endures as many as 1,000 hits to the head per season. Recently, neurologists have suggested that such blows to the head could be deceptively severe, even if the player does not feel any pain or show any symptoms. The accumulation of such strikes to the head could cause long-lasting damage.
Lyle did mentioned in a few posts back that he might not let his kids play football, funny but I also remembered a few retired NFL guys saying that also. And i can understand why. Because the sport is just so physically debilitating and thinking about it in a way American football is the boxing of team sports.

If in the future I have a son and he has a good foot, I'll let him be field goal kicker or punter. The only positions I'll let him play