Watching it as we speak, and holy crap, I was never the biggest Forrest fan but even I wouldn't have wished that on anybody. He got made a complete and utter fool of. Was definitely not expecting the fight to go anything like that, I expected Silva to win by KO but no way did I think it would be that easy or that quick. Still, before taking too much away from Forrest you have to say, damn Anderson is a badman. That last little part where he dropped his hands down, just used swaying to let Forrests punches skim his nose and then pick out the perfect time to just casually throw a counter out like that, got such ridiculous skill. And let's not forget you don't have to hit hard with counter to do someone in like that, all about timing and Forrest looked like he was throwing that punch that got countered pretty forcefully as well. Inclined to agree with the commentators and think he must have been messed up before that to go down, but I didn't see where it was that he got hurt the first time.
Now to watch BJ and "Ken-Flo" (worst nickname in the history of MMA imho. edit: or any combat sport for that matter. although upon reflection i'd say it's tied with "The Muscle Shark"