MMA fighter scores a vicious knockout with a picture-perfect spinning kick

This had to hurt.

MMA fighter Sean O'Malley had himself quite a night at LFA 11 in a match with David Nuzzo.

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In the fight, O'Malley landed a devastatingly brutal kick that resulted in a Round 1 knockout.

Nuzzo goes down immediately from the kick, which ends with the referee pulling O'Malley away from the fallen Nuzzo to stop the fight.

O'Malley is now 6-0 in his young career, and if he keeps it up, he's certainly a young fighter that you might see in the UFC in the not-too-distant future.

[h/t Bleacher Report]