what weight? 147 or 154? Sergio is better than anyone Berto has ever faced and has all the tools to beat him.
Martinez, but Berto isn't a big welter. His fight night weight was 153 1/2 against Quintana. He did look more ripped than ever however.
If Martinez came in all weight drained and out of it, Berto might stand a chance. Otherwise Martinez all day.