5 most violent knockouts in UFC history

#2. UFC middleweight Uriah Hall knocks out Adam Cella - TUF 17

The Ultimate Fighter has helped introduce fans to some of the UFC's future stars. Many Hall of Famers got their start on the show and have even become champions in the promotion. Uriah Hall was one of the fighters that broke out and earned a reputation following his stint on TUF.

In season 17, Hall matched up with Team Jones middleweight Adam Cella in the elimination round. Cella did well by taking a more aggressive approach at the start of the round. But wasn't able to land a powerful strike and get Hall to second-guess himself. Despite holding his own against a superior striker, Cella was outmatched.

At 4:55 of the first round, Hall ended the fight in spectacular fashion. He landed a perfect spinning-backfist that dropped Cella and immediately knocked him out. The aftermath was terrifying as all the fighters and even Hall himself were in shock and disbelief.

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#1. Gary Goodridge knocks out Paul Herrera - UFC 8: David vs. Goliath

Despite a 4-4 record in the UFC, Gary Goodridge's tenure in the promotion is still fondly remembered. He has one of the greatest knockouts in the promotion's history and arguably the most violent. What made the knockout so impressive is that it was both his promotional debut and MMA debut.

Goodridge fought Paul Herrera in the opening round of that night's tournament. The fight quickly ended as Herrera shot for a takedown during which 'Big Daddy' caught him and reversed position. He transitioned to a crucifix position and then landed many viscious elbows that knocked Herrera out.

While speaking with Bloody Elbow, the Canadian reflected on his 13-seond knockout win. He mentioned that preparation was key in his win. Goodridge mentioned that his corner noticed Herrera working on the same fireman's carry multiple times.

"Even when I wasn't event there, my corner was there saying, 'hes going to shoot and he is going to fireman's carry.' So, we spent all night in my hotel room learning how to combat the fireman's carry so that i didn't look like an idiot. " Gary Goodridge on his knockout win over Paul Herrera.