none of the body was designed to play football. >> amazing to hear that. a guy at that level. i recently got a chance to speak with another former player about the side effects caused by big hits. we have done a lot of reporting on this. i was still shocked by what he told me. this moment, this hit, is painful to watch. >> look how awkwardly his head is caught under him. >> you were knocked unconscious. >> for a minute, yeah. the following week, when i played, i had players on the other team telling me they didn't think i was going to play. they were not understanding why i was playing in that game. >> the next week you are out there playing again? >> yes. >> i mean, that doesn't sound