BoxRec

If they would've met in a WBA/IBF unification in late 1990-early 1991.

Who wins?

Mike McCallum would have caught Michael Nunn late with a terrific left hook like James Toney did.

McCallum by knockout in 10.

Either Nunn takes a decision or vice versa for the Bodysnatcher to take a decision or late round stoppage.

Nunn was at or near his prime. Nunn UD. McCallum struggled with Graham and a 35-year-old Kalambay during that period. Bad matchup for McCallum, IMO. Of course McCallum could land the big punch like Toney did, but I don’t see it. Mike wasn’t blowing out decent opponents like he did at jr. Middleweight. He was grounding out decisions against top opponents

Nunn on a close decision.

I'd favor Nunn to take a UD here