. >> hi, my name is tony santos, i'm a high school football coach for the last 21 years. >> thank you for being here today everyone. we are all struck first of all about the personal story, you have experienced a concussion, can you tell us about that? >> it was the last week of basketball for my senior year and we were doing a machine gun drill and it was where we were supposed to take a charge and get run over by the person in line. and we were supposed to land on our butts and fall softly and that did not happen. and i got knocked on my back and hit my head on the floor. >> so, as an athletic trainer how do you handle it? >> we would be at the practice with the athletes if not the games, our initial assessment will go through a series of tests, mental tests. are they awake and if they are, do they have memory loss or any kind of deficiency in terms of speaking ability? once that is determined we can take the next steps, whether it's an emergency reaction or we can go to a different location and do more assessments. >> as a coach, what is your responsibility in that situation? >> my