Can u picture Marvin not fighting the 4Horsemen after they moved up...?
Everybody would have said he duckinnnn!!!
He had to fight them in a way. Also alot of people love to say Marvin called out smaller guys but those guys used to call out Marvin all the time, especially Hearns. Plus they are not regular fighters moving up in weight , they are ATGs. Duran won titles at mw,
Ray won at smw and Hearns won at cruiserweight.
Spinks: There was no 168 division back then and marvin was a true middleweight but small in a way. I dont believe he had the body frame to go up to 175 magically and face Spinks successfully without strain.Marvin rarely walked above 160 and in some of his title fights he was below 160. Plus Spinks really was a hw at lhw and should have been open to catchweight, but he wasnt as far as I know. Dumb boxing/business decision imo.
Mcallum: Didnt happen cause Marvin at that time was trying to fight Ray and vice-versa. Marvin compromised with Ray in terms of ring size,gloves,purse and...etc. But Ray still wouldn't give him a rematch, so he retired cause he was too old/war torn anyways. He only wanted big money fights now. Also there was no public outcry from fans or media to face Mcallum unlike with Duran, who had just beat Davey Moore for a mw title.Mcallum had started at jmw division and by the time he won a mw title(still unknown)...Marvin had retired.
It took longer to get a mw title back then and people really wasn't fond of fighting Marvin anways in his prime. Marvin had became a PPV star, had the skills and was the Undisputed Mw Champ.
If u want the Undisputed PPV Champ, move up or down to get him.........
There aren't a lot of fighters who are that accomplished in their first 20 fights.
to losing decisively to Mayorga in a garbage brawl 
