Former street-fighter and YouTube sensation Kimbo Slice is easily one of the most fascinating figures in combat sports in recent years. The guy first achieved notoriety when recordings of his unsanctioned street fights went viral and Rolling Stone crowned him “The King of the Web Brawlers.” Then he tried to make is as a legit MMA fighter, joining the now-defunct EliteXC in 2007, and competing on the tenth season of UFC’s reality TV series The Ultimate Figher. However, he couldn’t cut it in the UFC, and ended up getting cut after losing his pay-per-view debut to Matt Mitrione at UFC 113.

What’s he doing now? Taking on absolutely horrible opponents in boxing. Check out this ridiculously fast knock out from his last match.

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