Kyle Turley

Turley, 35, played offensive tackle for the Saints, Rams, and Chiefs during his NFL career. Recently, he's been in the spotlight talking about the debilitating effects the hits he took as a player have had on his body, and his decision to support this cause. "If I can donate my brain to this situation, this cause, I'm helping my boy out. I want him to be able to grow up and at least have a chance, you know, not be facing these things that I've been facing" Turley said in a 2010 interview with Arrowhead Addict, a Chiefs fan blog.

Credit: Doug Pensinger/Getty Images