When asked how many concussions, he said "That I know of? Three, four maybe. As we are learning about concussions, there is a term often used in football and maybe in other sports, that I got 'dinged.' "
" 'Dinged' is a concussion. When you have ringing of the ears, seeing stars, that's a concussion. If that is a concussion, I've had hundreds, probably thousands throughout my career, which is frightening," he said.