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UFC Hall of Famer and former two-division UFC champion Georges St-Pierre is unquestionably among the greatest fighters of all time, but in recent years, current titleholder Kamaru Usman has certainly inserted himself into that discussion, as well.
With an unblemished mark of 15-0 inside the promotion's octagon, not to mention with five consecutive title defenses under his belt, Usman is certainly gaining the respect of his peers, and St-Pierre said it's reasonable to consider "The Nigerian Nightmare" as the best welterweight in UFC history, even if he believes some caution should be used in that assessment.
