cotto hasent had any stamina problems yet but he hasnt faced a fighter as busy as hatton. any yes i know fighters like mallinigi and torres went after cotto but they don't quite set the pace of hatton and the pair of them cant keep it up for 12 rounds. cotto likes to nick little breathers hear and there and can be a bit lazy. he stops fighters in say8 or 9 when he could finish it in 5. hatton would be way to busy for cotto who i think would burn out after 7 if he has to keep up with hattons pace.