But does that make it the greatest in UFC history?
Hall's spinning back kick knockout was easily the most violent televised KO in the history of combat sports, and UFC President Dana White praised it as one of the best five knockouts he has ever seen.
"That's my favorite technique," Hall said of the kick. "... It's a little bit of an unorthodox move. If you have good speed and good whip, you can catch someone, and it's really deadly. I love to use that technique, and just from being in the ring with him, I'd seen how he would drop his hand a little bit.
"I had the chance and I capitalized on it and I took it."
Cella had been keeping his hands low, and Hall took advantage by delivering a spinning back kick that landed precisely where he wanted. Hall attributes much of his recent success to UFC legend Chael Sonnen.
"My time on the show made me a hell of a lot better fighter and it revolves around the one thing I'd been having constant trouble with," Hall said. "The fear of letting go and the fear of emotions getting the best of you. All it took was Chael getting inside my head and teaching me how to handle that.
"He was a great mentor and coach and I thank him for that. As an athlete, you sometimes put unnecessary pressure on yourself. You want to perform so badly for that crowd, or you worry too much about what others think of you. You don't want to lose. That was always my biggest concern. I didn't want to lose. I put too much pressure on myself and it caused me not to perform."