Which fighters from your country have given the best knockouts in history?

One of the most exciting fighters from my country and p4p one of the biggest punchers was Nigel Benn. Benn won his first 22 fights by KO, most within the first two rounds, and he was always dangerous. He knocked out a fighter called Anthony Logan when he was on the verge of being knocked out himself. Benn admitted himself that he loved a tear up rather than a boxing match and you were pretty sure you would see an exciting KO whenever he fought.