Unlike UFC 200, UFC 100 was one of those events that gave fans multiple unforgettable moments that have and will continue to stand the test of time. Right at the top of that list was the most memorable one punch KO in UFC history. Tonight, the man responsible for that KO will hang up his gloves for good after he gets one final crack at becoming a UFC champion. And we thought he was close to retirement all the way back in 2009.
Before you get ready to watch Michael Bisping attempt to right the biggest “wrong” of his career, relive the loudest H-Bomb of Dan Henderson’s storied career below.