Not sure if he started fighting stupid. He never gave Bigfoot any respect in that fight, and had his hands down the whole fight. Overeem also gasses, Bigfoot an even bigger man had much more left come round 3.
2 wrestlers beat Bigfoot to a bloody pulp. DC at 5'10 and still a green striker clocked Bigfoot standing and sent him down. You would think the K-1 champs with all of this supposed power could do the same in 3 rounds.
The thing is. the shot that Cormier first put him down with wasn't a simple hook or straight. it was a wild hook.
While Overeem was doing his best James Toney impression rather then throwing with real intent.
Though it is safe to say he isn't in fact the best striker at HW anymore.