Kimbo Slice is a contestant on Season 10 of "The...

Kimbo Slice is a contestant on Season 10 of "The Ultimate Fighter." Credit: Spike

Remember when Kimbo Slice used to compete in mixed martial arts? His strength was his background as the YouTube Heavyweight Champion and in punching people.

Well, now he's back in the ring -- the boxing ring -- and he threw just one punch in his second pro fight, a knockout of Tay Bledsoe. Watch and judge for yourself.

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