Bo Jackson will go down as one of the best athletes of all time but even he says that he wouldn't have played football if he knew about concussions. "If I knew back then what I know now. I would have never played football. Never. I wish I had known about all of those head injuries, but no one knew that." "The game has gotten so violent, so rough. We're so much more educated on this CTE stuff, there's no way I would ever allow my kids to play football today," Jackson's football career ended after a serious hip injury in 1991, though he would recover and go on to play several more seasons of baseball.
