Joe Rogan's reaction to Leon Edwards knocking out Kamaru Usman is incredible, it's his best yet

Joe Rogan's reaction to Leon Edwards knocking out Kamaru Usman was priceless and it might just be his best cageside reaction to date.

The UFC commentator had the finest seat in the house as he watched Edwards snatch a historic victory from the jaws of defeat to clinch a world title.

Down on the judges' scorecards with less than a minute left on the clock, British fighter Edwards produced a headkick which landed flush on the chops of Usman.

The devastating blow sent the UFC's pound-for-pound king crashing to the canvas in a heap as the aptly-named 'Rocky' wheeled away in celebration.

Whether you were lucky enough to witness it in the flesh or you were watching from the comfort of your living room sofa, it was the sort of moment which truly got everyone out of their seats.

UFC legend Rogan had a great reaction too with his pupils almost popping out of his head as he saw one of the most dramatic finishes in MMA history unfold before his eyes.

Unsurprisingly, Rogan's reaction has gone viral on social media with the footage from the commentator's booth making for truly brilliant viewing.

The second Edwards' shin landed on Usman's chin, Rogan let out one of his iconic "OHHHHHHHHs!"

In a desperate bid to try and steady himself, Rogan then leant back and grabbed hold of his co-commentators Jon Anik and Daniel Cormier.

Anik and Cormier glanced over at Rogan, but the popular podcaster was too transfixed on what was going in the ring.

"Ohhhhhhhh! Ohhhhhhhh," he yelled repeatedly.

A bunch of hilarious memes soon followed, of course.

Speaking after Edwards got the belt wrapped round his waist, Rogan was just as gassed.

"Nothing compares. It's the greatest headkick knockout in the history of the sport," he said.

"With the most consequences. The most at stake. The most doubt. The most people counting him out."

And if truth be told, it's hard to argue with bold claim.

The two welterweight rivals are expected to run it back for a third time in what promises to be one of the most electrifying trilogies of all-time.

UFC president Dana White even hinted that he'd love to do it at Wembley Stadium too.

Yes please.