When greatest rounds discussions come up we all go to Gatti/Ward 9, Hagler/Hearns 1, Castillo/Corrales 10, etc. But I was re watching a bunch of Hagler fights recently and totally forgot the absolute war he had with Mugabi in the 6th round. Both guys just stood throwing bombs for most of the round, it was incredible the amount of punishment Mugabi took and kept going. Impressive given how hard these guys hit. Mugabi was 25-0 with 25 KO's. Hagler was 62-2 with 52 KOs.