the biggest SIZE (Weight and Height) difference between two opponents...EVER Just interested...Can a guy like Mayweather, Cotto, Pac defeat a top 20 heavyweight?
I figured it would be a Valuev fight, in his 13th fight Valuev weighed 348 1/2 (heaviest of his career) he fought Alairm Uysal (a Turkish Cruiserweight) who weighed in at 189 1/2. Needless to say, it was a 2nd ko for Valuev. Butterbean also routinely outweighed some of his foes by 150 lbs or more.
It wud have to be in the heavyweight division. Vuluev shud outweigh haye by about 100lbs in their fight. I still think haye has a gud chance.