Look back at 10 of the top lightweight knockouts in UFC history featuring some names like Edson Barboza, Conor McGregor, BJ Penn and Dustin Poirier.
The list includes devastating head-kick knockouts, left hooks from hell, flying knees, and other fight-ending connections.
Check out the list.
(Video Courtesy of UFC)
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The Top 10 Lightweight Knockouts in UFC History | Video