Unfortunately, I dont think Barrera will carry much power to lightweight. Hes on the way down, and Khan is a strong lightweight on his way up. Even though Barrrera is the greater fighter without question, I think Kahn uses his footwork and jab to win a decision. I cant see Kahn taking to many chances, but he has respectable enough power to keep Barrera at bay. Hopefully Im wrong and MAB tests his chin early.