Zebaztian Kadestam notched one of the most brutal knockouts in MMA history at ONE: Dynasty of Heroes, destroying Luis "Sapo" Santos with a series of violent knees on the ground (a technique that is legal in ONE Championship).

Kadestam will need all that power and aggression Saturday, Sept. 2, when he takes on decorated grappler and undefeated mixed martial artist Ben Askren at ONE: Shanghai, live on FloCombat for U.S. viewers at 7 a.m. ET. Can he spoil Askren's undefeated run? Watch with us to find out.

Music via Disillusion Effect

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