Yeah, Cotto is a fucking diva, he went all Mariah Carey on Martinez demanding his name first, date, venue, Ring walk, etc, even talk about not allowing Martinez to wear a knee brace lol.
But in the end the money is just too much to pass on, plus who else out there could Cotto realistically fight. It's only Canelo unless he wants to make less money against a more dangerous opponent in GGG. the only thing that could screw this up is if Cotto insists on having a tune up first, which he seems to do after every big fight.