As much as I liked watching Hatton fight, this would not be a nice night for him. The real, bonafide, original "Hitman" would totally destroy Hatton inside 3 rounds. He was way too tall, too fast, too powerful for Hatton to keep him off for long, if at all.
Hearns could stop Hatton if he was only allowed to throw his jab. That thing would be like a hard right hand hitting Hatton's face over and over. He'd have no answer for it and no way to stop it.
What about Hearns with one arm and castrated with box-cutters immediately prior to the fight with a prime Hatton? i.e. eunuch one-armed version of Hearns versus Ricky? :think
Well after looking at Hearns slimline figure and comparing him to paul Williams i can only conclude he has a glass jaw Hatton KO2