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One of the greatest who has ever done it is Demetrious Johnson. 

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This remark generally refers to mixed martial arts, but on Friday it also involved getting even.

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At ONE on Prime Video 1 on Friday, the former UFC flyweight champion

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successfully defended his ONE Championship flyweight title with an

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amazing flying knee that looked to put opponent Adrian Moraes out cold.

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It was a rematch after Moraes defeated Johnson to win the flyweight title at ONE on

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TNT 1 in April by knocking him out in the second round with a barrage of blows.

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Johnson made a decisive strike in the fourth round this time, ending the fight.