I knew what I risked when I played, and I'm no longer willing to risk it.

Fair enough. He got a few years of six figure salaries, maybe invested well and lived below his means, and has a degree from UW. Now he sees no reason to chance even one concussion, and I don't blame him one bit.

I always wondered if concussions are more common on the O-line/D-line than we know. These are the guys that are almost always away from the ball, so it would be less likely that anyone would notice. Granted, they don't have someone spearing them helmet-to-helmet, but they get into a lot of weird positions in pile-ups with guys flying in.