Apparently Hagler told Hearns not to cut him or it would end up in a real fight which it did.

Yes I read that about the massage too, it seems like speculation by Steward though when answering why it went wrong.

Hearns defiantly got the tactics wrong though, but it was never in his nature to step down if someone wanted to fight him. This defiantly was the reason why he lost the fight though. If he had more discipline to his game plan and the factors I mentioned before would he have been able to have beaten Hagler?