Murray is a solid fighter and I don't see Cotto even trying to fight him unless he drains him down to 155.
I think Murray beats Cotto to be honest, Martinez wasn't in great shape in that fight but basically those damaged goods were shattered by the time he strung himself together for the Cotto payday and I think Murray got a draw at worst in Argentina.
Dunno man. Cottos has taken hits from ATG level fighters. Murray isn't on that level but does have size.