you may have heard that argument so many times sweet pea my friend because it is quite a valid argument. i just said it again because you baught it up. myself and many others just think that mayweather hasn't got the firepower to keep hatton off him for 12 rounds when hatton is on one.
yeah a fight with cotto or mayweather would be bigger than hatton's fight with castillo but that fight still shapes up to be awesome. and the fact is that hatton and castillo both want that fight, it will be a close fight, and both fighters are already fighting at 140.