the story line. he apparently sounds like blew another chance that chicago was willing to give him. >> we'll turn things a little more positive. a retired football player trying to make a difference when it comes to traumatic brain injuries. he's legendary hall of fame quarterback, joe namath. >> broadway joe has helped open a research center looking into the injuries. he says experimental treatments are improving his memory. matt gutman is there. >> joe namath was good in the theater of football. famously guaranteeing a victory in super bowl iii and he was also good at taking hits. he still remembers some of the worst ones. >> it was a hard hit and a gold flash, man. i never forget that. >> did you know that you had had a concussion? >> no. absolutely not. >> all those hits took on new meaning for him after the suicides of football greats including junior seau. he says he suffered from forget. fulness so he had himself tested