Why ? You don’t think he was capable of beating a bigger hard punching heavyweight ? Lookup Nino Valdez and Alejandro Levorante
Ray Mercer won Gold, he can box a little and on his best day he would beat those two you men tioned wiothout much fuss. Best vs Best Mercer stops Moore dead........Moore was never a legit Heavy and was stopped by absolute nobodies even in his prime. Archie Moore is no aging Holmes and old Holmnes would beat Moore. I am convinced Mercer would stop crude Marciano. Mercer aint no ATG but he will flatten light heavies/cruiser Moore , Charles and Marciano.
Common man. Mercer was a 26 year old Sargent in the U.S. Army beating guys who were 17-21 years old when he won that Gold. That’s not to say he didn’t deserve credit for it, but it’s hardly a reason to favor him over proven professionals and ATG’s. I can see how Mercer’s chin and power would make him a formidable foe for Marciano but Moore and Charles would make him look silly with their skills