NFL Concussion Problem

I don't think it's so much that they didn't know they could get hurt, but that they didn't know concussions linger and get worse later on.

I promise you that if they had known the dangers of concussions they still would have played through them

Exactly BigRaiderFan,,,how many guys are quitting football this year on their own because they don't want to suffer the long term effects of concussions?