How do you think this one would have gone?
Marvin was woefully slow against SRL & by 1988, he would have been a middleweight version of Frank Bruno, but with decent stamina.
I think Nunn would have outboxed Marvin around about this time. :(
He wouldn't have troubled Marvin, as he couldn't punch the skin off a rice pudding, but his speed, mobility & awkwardness would have been too much for the sloth like Hagler.
Nunn by easy but dull 12rd decision.