I don't know much about Martinez, but I really don't have much hope in Cotto returning to his old self. Plus, the fact that this is yet another change in weight for him, makes it tougher for him. Cotto always has his punch on his favor, but a weight chance diminishes the impact. On the other hand, Martinez has been fighting Middleweight for 4-5 years now so he is more used to it. Still, Cotto is a smart fighter, so he might find a way to win. Who knows.