“I’m going to win. I’m crazy,” was the promise Wang Cong made to Victoria Leonardo during UFC on ESPN 62 faceoffs on Friday — all while wearing paint to look like the Joker.

On Saturday, Cong (6-0 MMA, 1-0 UFC) made good on that promise when she defeated Leonardo (9-6 MMA, 1-4 UFC) with a one-punch right cross knockout at UFC Apex in Las Vegas, the stoppage coming at 1:02 of Round 1.

Cong, 32, is a highly touted flyweight who entered the UFC after a Road to UFC showcase fight. She has four wins in six professional fights.

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For more information on the card, visit MMA Junkie’s event hub for UFC on ESPN 62.

This article originally appeared on MMA Junkie: UFC on ESPN 62 Video: Wang Cong makes good on his “Joker” threat and beats Victoria Leonardo