MMA legend Bob Sapp just doesn't know when to tap out. Well, with 8 losses in his last 9 fights, 6 of which via submission, maybe he does. The problem is that with every new fight he takes, the more damage his brain takes. To say Sapp is past his prime is an understatement. His resolve in holding onto in-ring glory is an ominous illustration of the dangerous culture of pro fighting. More is learned about CTE every day, and it's hard to believe that a guy who fights as frequently as Sapp, at his advanced age, hasn't developed the degenerative brain disease (he's got 3 fights scheduled in a 3 week span, a daunting task even for prime-aged fighters). Maybe it's money, maybe it's pride, either way Sapp may become a sad example of the dangers of hanging on.