Yes I agree with @Mr140

Rocky was 185lbs, let's ATLEAST get him in with the guys his own size first. 185lbs is about EXACTLY the average weight of a LHW rehydrated at fight night.

There are a few relevant questions..

Marciano vs B-Hop (selected version)
Marciano vs Andre Ward (couple years back)

OR most relevant

Marciano vs Kovalev?

Personally, I think Kovalev KO's him quick, but ATLEAST I don't have to entertain utter GARBAGE like Rocky could "HURT" Wladimir bloody Klitschko or anything like that!