10 Most Brutal Knockouts In UFC History

7. UFC Fight Night 135: Justin Gaethje Vs. James Vick

Oh, James Vick...

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It's always a dangerous game when you start running your mouth and promise to knock somebody out. For James Vick, those comments well and truly came back to bite him in the ass.

Well, more specifically, those comments came back to punch him square in the face.

Vick had been talking trash before last August's UFC Fight Night 135 contest against Justin Gaethje, but it was Gaethje who had the last laugh.

Not even 90 seconds into the first round of the fight, fans were treated to Gaethje flooring Vick with a brutal right hand that left his opponent lying on the mat in a crumpled heap.

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