Seems as though whatever brand of magic it is that flows through Antonio Rodrigo Nogueira ‘s veins when he fights in Brazil doesn’t work on fellow Brazilians. Or, since our sample size is still too small to draw any firm conclusions, maybe it just doesn’t work on Fabricio Werdum . If you’re one of those people who can barely be troubled to watch “The Ultimate Fighter” when it’s in English (*discreetly raises hand*), and so spent the better part of the past year wondering if Werdum had renounced professional violence and gone off to live in a monastery, consider Saturday night’s UFC on FUEL TV 10 main event your reminder. “Vai Cavalo” is still here, and he’s still pretty damned good. The question is, how good? Because I’m not sure his win over Nogueira gave us much of an answer. That’s not a knock on “Big Nog.” He might sometimes walk like the Tin Man when he’s outside the cage, but once his foot hits that mat he’s still a dangerous fighter with plenty of tricks up his sleeve