we'll also hear on this panel from briana scurry, an olympic and world cup soccer champion, a goalie, forced from the field after a career-ending traumatic brain injury almost four years ago. her struggle to over come the cognitive, physical and psychological injuries follow illustrate even our sports heroes are vulnerable to the worst sports injuries. both ian and briana should be commended for their courage. i thank you, briana in their recoveries. and for their willingness to testify on this critical issue. dave during son -- duer son, pro bowl safety, former member of my hometown chicago bears, tragically committed suicide three years ago. doing so he shot himself in the chest avoiding any impact on his brain he wanted donated to medical research to allow scientists to study impact of brain trauma he suffered over his 11-year professional career. it was later disclosed that duerson suffered from moderately, advanced, unquote, traumatic encephalopathy. repeated blows to the head which can result in memory loss, depression and dimentia. heaton and scurry stories that career ending s