used, and police officers, and so therefore, these football players do what we will do, and the second hurdle is contributor negligence. i don't think anybody needs a committee of doctors or experts, or anyone else, to suggest to you that head injuries are traumatic, and certainly, if i'm a football player and i don't want to suit up and go back into the game it's my prerogative to say to and not go out there but they're concerned about their name, their image, their reputation and endorsements. jenna: there's a lot of money at stake for the league and teams, and they do wear helmet, we know that, they put on a helmet because there's a chance you could really get hurt and at the same time, this committee was headed up by a reum tologist, a guy that knows about joints, not brain injuries, so does the league have a problem there? >> they do. that's why the case has merit. the players assume the risk when they get on the field, they assume the risk of concussion or getting hurt. what they don't assume a risk of is by continuing to play, by having the league and league's doctors say