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UFC 300: Max Holloway's unbelievable KO sent a pulse through the MMA world

Max Holloway was already a UFC legend. He reached another level of greatness at UFC 300, and ever fighter watching knew it.

In the waning seconds of a clinical performance against Justin Gaethje for the ceremonial "BMF" title, Holloway did something he probably shouldn't have done. He pointed to the center of the Octagon and invited Gaethje to go full "Rock 'Em Sock 'Em Robots" for the final 10 seconds.

Both fighters landed some blows, but Holloway finished it with a hard right in the final second that knocked Gaethje out cold.

You could practically see the adrenaline coursing through Holloway's body as he spent the next several seconds unleashing primal screams.

It really needs to be stated outright: Holloway had no reason to do that. He outstruck Gaethje 181-103 over the course of five rounds, including a spinning backheel that potentially broke the veteran lightweight's nose at the end of the first round. A rational fighter in that position would spend the final 10 seconds doing everything he could to prevent Gaethje, one of the most popular knockout artists in the sport, from getting the one punch he needs to rip victory out of certain defeat.

Holloway didn't care, or perhaps he realized that he needed something special to get the much-wanted $300,000 bonus from UFC's highly anticipated card. He ended up demanding $600,000 for a moment that will live on through UFC history.

He also demanded a shot at his old belt against current UFC featherweight champion Ilia Topuria, who was in the crowd and looked disturbed as the rest of the crowd reacted to the final blow.

The mood was noticeably subdued in the run-up to the next fight, the co-main event between women's strawweight champion Zhang Weili and challenger Yan Xiaonan. Pretty much everyone there needed a few minutes to settle down.

As for the rest of the UFC's roster, well, they were impressed. And shocked. And reflective. Mixed martial arts exist for moments like Saturday, and you could definitely see the vibe on social media.

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