Martinez is older, he's declining, you can see from his last couple fights, he struggled. People overrating Martinez. Chavez is bigger, stronger, going to solid to the body, going to wear Martinez down . Chavez by stoppage.
I don't think much about Martinez , he isnt that good and he is getting old as dirt. He's more experienced then Chavez though so you have to favor him.
I see Martinez gettin the better of it early. But then bob arum distract the ref and Martinez corner just long enough for roach to land a chair shot on Sergio, giving chavez the win. Because that's the only way martinez is gettin KOed.