Tyson's main attribute was the speed at which he delivered his punches which I'll concede would put him a step above most strikers in the UFC however, the fact that all he would have is his strikes a competent grappler would be able to counteract his power.
And anybody who tries to tell me that UFC in particular is like a Street Fight needs to look no further to how bad Kimbo Slice was exposed by a rather average mixed martial artist.

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