Ravens guard John Urschel, the NFL's mathematics expert, said his passion for playing football outweighs the risks of suffering head trauma.
"I recognize that this is somewhat irrational, but I am doing it," Urschel told HBO's "Real Sports with Bryant Gumbel" in an episode that aired Tuesday night. "It's more important to me that I'm able to do the two things I love. I don't know if people have really done things that I've done before. I don't know if they'll do it after me. But I enjoy carving out my own path and not listening to what people say I can and I can't do.