Wanderlei using all of his skills in that one. Did you see that slick Triangle/Armbar transition? I also noticed that he was real quick not to end up in the North-South position under Fujita (Fujita's known to knee and kick in that position).
And if anyone doubts the Jabs position in MMA striking, one of the biggest reasons why Fujita wasn't able to unload was because Wanderlei was sticking his jab in his face. It set up the constant 1-2's that brought Fujita down.