Was reading Ray Leonard's book over the holidays. As a HUGE Roberto Duran fan, it was a great reminder of just how many people Duran disappointed with the NO MAS fiasco, and the shame he brought on himself.

So what do you guys think is the most disappointing championship performance of all time?

For criteria, I think we should limit answers to "big" names who much was expected from.

Also, I think it's a little unfair to list early KO's where a guy got caught and finished. Of course that is always disappointing, but anyone can get caught and put out. I'm talking about guys who undertrained, showed no courage, quit, ect ect.