DANA WHITE won a staggering $100,000 (£74k) bet after Canelo Alvarez's stunning KO of Caleb Plant.
The UFC chief - who oversaw a stacked card in which Kamaru Usman beat Colby Covington - placed the huge wager on the P4P king before their super-middleweight undisputed world title fight in Las Vegas.
And it was quids in for White, who walked away with $41k (£30k) after backing the Mexican to win by knock-out.
Canelo, 31, struggled throughout the fight but sent Plant crashing to the canvas in the 11th round.
He is now the first-ever undisputed super-middleweight champion in history - and has banked at least £30m for his troubles.
And White is a whole lot richer for it, too.
White was seen watching the fight on TV while sitting in the front row at UFC 268.
He said: "I like Canelo. I bet on Canelo - that's why I watched the fight.
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"I bet $100,000 on him to win by knock-out."
When asked if he paid for the fight he grinned and said: "Uh... yes."
The 52-year-old admits he is a 'degenerate' gambler having lost a $1MILLION (£741k) boxing bet in 2007.
Las Vegas-based White is a notorious blackjack player but also loves a punt on sports.
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He told in February: "Oh my god. What was the kid’s name? Jermain Taylor.
"And who did he fight? I know this for the ass-whooping I took. He fought the tall, lanky, white kid from Ohio, Kelly Pavlik.
"I bet $1million on Taylor and he got destroyed.
"It was the first time I ever bet $1m dollars because I was so confident Taylor was going to win that fight."
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White grew up in Boston but moved to Sin City after a run-in with crime boss Whitey Bulger.
It was in Vegas where his love of gambling started.
He said: "I’d say it’s about time. I like it. It’s obviously a thing people love to do.
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"It makes whatever you’re watching a lot more fun, a lot more interesting, so I’ve always been for it. But I’m from Vegas.
“I play table games too much. I’m a degenerate if you’re not getting it. I’m a degenerate, yes. I love to gamble."