football player and wwe superstar. he s now using his expertise and wisdom to warn others about the dangers of head injuries. brian: his sports legacy project is tremendous. chris, welcome. thank you for joining us. thanks for having me. brian: if you notice, the nfl changed their tackling techniques. it rocked the pros. we really want to make people safe from the time they start playing until they go pro, right? when you start this conversation, we have to appreciate that football is just more dangerous the younger they are. so we really have to emphasize safety, teach them properly but consider how young you are when you start to tackle. elisabeth: i want to introduce our young players here. what s your name? sam. elisabeth: hi. damon. elisabeth: you guys play hockey. i know we were talking and you play football. the importance of avoiding concussions, over 25,000 medical reports came in with head injuries for kids playing sports, right? yes. elisabeth: what do