UFC 144's opening event of the Pay-Per-View didn't last long, as Anthony Pettis knocked out Joe Lauzon in the first round of their lightweight bout in Tokyo.

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A tibia to the jaw's enough to make most people sleep, and it did the job on Lauzon. Pettis remains a top contender in the UFC lightweight division. [UFC]

Update, March 7: Video and screengrab removed at UFC's request. Drawing by Tommy Craggs.