I would be shocked if you could find a single wrestler on the WWE payroll who hasn't suffered at least two concussions. Hell, I've gotten a concussion in the ring, and my "wrestling career" consisted of about a dozen matches. If the congressional committee pays serious attention to the matter of brain damage and enforces some sort of strict regulation on that front, bye-bye wrestling as we know it.
And I can back up the story about Smothers being brain-fried too. Aside from hearing countless stories about his infamous temper (New Jack: "Tracy Smothers is one crazy motherfucker"), I've worked with the guy and been ring announcer for his matches on twenty or thirty occasions, and every time he greeted me with "Hi, I'm Tracy, what's your name? Nice to meet you, Jingus."
Not just WWE but I'm willing to bet every wrestler out there has had at least one concussion. Just like I beileve everyone in the whole universe is on some kind of drug. They just don't know it.