At best, it's a repeat of the Jackson fight, meaning that Norris at least wins the first round before getting knocked out cold. But that's at best... it's very possible he doesn't see the second round, and even if he does, it will be after taking a beating in the first.
Impossible for Norris to even win the first round here. Hearns was no Julian Jackson. Hearns simply steps in the ring and then knocks him out.