He was easily outpointing him in the first fight until whatever the excuse was, I think he said he hurt his hand. He DID stop throwing with that hand after that round. Margarito's head is granite though.
Unless Bob Arum can find a bigger fight for either of them - it's on! His old ass is too greed not to make the fight. He'll still have a Unified Champ - and two good Welterweights under his umbrella - between Margarito, Clottey, & Cotto. And I'll take Clottey in the Rematch. He was busier than Margarito in the first fight - until hurting his hands - plus he has pretty good defense.