So did Marciano, and he never lost a fight, unlike Lennox. He always did better in the rematches (LaStarza, Walcott, Charles), but unlike Lewis, who was stopped by McCall and knocked out by Rahman, he won first fights too
Lennox had one glaring fault he tended to underestimate certain opponents McCall & Rahman were two that capitalized on that. He should have joined Rocky as retiring undefeated if not for that