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  Guy gets KO'd by fish

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  Russian drunk guy a log to the face

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  Show-off fighter gets knocked out

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  Fighter knocks himself out

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  Knock out fap

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  Hockey K.O.

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  Delayed reaction KO faceplant

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  Rugby referee gets knocked out

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  Heel kick knock out

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  Face-kick KO

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  Double KO

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  Knee-to-the-face KO

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  One-punch knock out

  177,225 views
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  Head-kick KO

  272,315 views
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  Knock out punch

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  The moment before KO

  186,247 views