a big announcement from the nfl. they pledge to end race norming. essentially racial bias and the treatment of concussions. it s a testing method used for assessing brawn injuries suffered by former athletes to determine how much each player should be awarded following a big class action fight settled a few years back. it assumed black players started out with a lower level of cognitive brain function than other players. white players and other nonblack players. the league is now committing to stop this controversial practice saying in part, this, we re committed to eliminating race-based norms in the program and we re broadly in the neuropsychological community. jo joining me is a former nfl player dr. myron role who is a neurosurgeon and was a former player.