I wanted to see this around 1990-91, before Toney beat them both. It could have happened too. I’m not sure who I’d pick to be honest
Nunn had ATG skills at 160 he was top tier ATG material but he lacked discipline and focus and chose drugs....I think very highly of McCallum who was a more consistent ATG fighter talent but in H2H I see Nunn outboxing him
This is probably the best example of a fighter having the wrong style for another fighter ....Michael Nunn by wide decision
If Nunn puts on a performance similar to the one that he did against Tate, then he wins. McCallum would be able to beat the guy who had close fights with Starling and Barkley, and those are more in line with Nunn's typical performance than the Tate fight was.
Prime Nunn wins this because his skills were pretty incredible. Anything less than absolutely prime Nunn and the fight goes to the Body Snatcher.
Nunn would have to stay range, he had a bad habit of trying to work inside to please the fans and needless to say you can't do that with a body puncher like mccallum. If nunn boxed how he did against tate and roldan mccallum could be in for a night like the first kalamby fight if not worse.