Mark Hunt is a beast. Not only is he a former K-1 top tier fighter, but look what he did to Ben Rothwell at UFC 135. Rothwell won 10 of his last 12 fights, and yet Hunt dominated him in both the standup and ground. And when he fought Fedor, he was even younger and better. Fedor picked Hunt apart in this fight and dominated him. Fedor is a sniper: he finds out your holes, then makes you committ mistakes until he gets you. It is amazing how much this guy declined over the past 5 years. Back then, he was not only the best heavyweight but also the best P4P by far. Now, he is barely a top 20 heavyweight - being very generous. I don't think that we have seen any fighter decline so much in the history of MMA. Could you see the Fedor of PRIDE getting beaten by Hendo? Back in PRIDE Hendo wouldn't even survive one round with Fedor, and Hendo is an outstanding fighter. From what I understand, Fedor became a religious nutter and now all he cares about is God. It's really a shame because he's not that old and if he were motivated he could make a comeback. He would probably never regain his #1 status, but he could still be a top 5 heavyweight and give us some awesome fights before retiring.
Maybe something in him broke mentally.
Same with Crocop... can losing belief in yourself be of such power that you're turned into a vegetable?