eddleman stays in leaving some in the record tv audience to wonder. >> was he going to be okay?>> reporter: after the drive edelman is evaluated for concussion and cleared to return to play, but that hit turns out it was the hit heard around the nfl. after the super bowl based on this and a few other hits, team owners unanimously passed a players safety resolution unofficially dubbed the edelman rule. the rule allows for the first time medical timeout. if the nfl spotter in the press box sees a possible concussion, he can push a button, talk directly to a referee and immediately stop the game. doctors then evaluate the player. the decision is not left up to the team. >> there's some people that have grave concerns about this in terms of what it may do to the flow of the game. >> reporter: stanford doctor tim mcadams is team physician for the san francisco 49ers. >> we will have to see how it works out, but i know it's the right thing to do because things happen so quickly. >> reporter: according to the cdc, players dying from a brain disease risk is tripled because of the blows

eddlemans' in, patriots are up 7-0. this was getting too easy. washington can do nothing right. wrong. the field. and eventually, watch this, very rare turnover. deep inside washington territory. one play later, the redskins a pretty good throw by kurt cousins. logan ryan has it. an interception -- right back where they started inside the 30 yard line. 129 yards rushing. at this stage, the patriots had what -- run 25 4 plays. brady where interception. look who makes the tackle. watch brady. gets in the way. tom, love ya. let somebody else make the tackle. here we go. here is the injury here. he reached down and grabbed. he walks off under his own power. don' t be mislead. that' s no problem whatsoever. the patriots up 27-3. final was 27-10. let' s go to bob halloran. bob: bill belichick said after the game it is only minutes after the game. so, he did not have an answer as far as dion lewis is concerned, but it is almost a cliche . we have said it enough times that this win did come with a l oss. dion lewis, what a find he has been for the patrio