The Brazilian champion did not pass the weight limit in lightweight of 70.3 kilos but weighed in just over at 70.5 and is thus the first UFC champion in history to be deprived of the title after losing weight.
Now, instead, only the challenger Justin Gaethje from the USA has the chance to win the championship belt at tonight's big gala UFC 274 in Phoenix, Arizona.
Should Oliveira win the match, the belt will be left vacant, and he will then have another chance to win it in his next match.
No apologies from Oliveira
The knockout machine Gaethje was upset when they both met face to face in front of the fans later that day.
- It's laughable, but I'm here anyway.
My goal remains the same and I promise I will knock him out, says "The Human Highlight Reel".
Oliveira in turn did not come up with any excuses:
- That's what happens, you can not explain God's plan.
But the champion's name is Charles Oliveira and will shock the world tomorrow.
The expert: "It's a shame"
The MMA world's reactions were not long in coming and many sawed the star's miss.
"I have nothing against him, but this is a disgrace.
I'm suffering with Justin.
What a total disappointment for everyone in this weight class.
Sad day ", writes expert commentator Paul Felder on Twitter.
"You must be better than that, brother.
The only time it's reasonably okay to lose weight is if you have accepted a match at short notice, ”says fighter Sean Brady.
Charles Oliveira has a match record of 32 wins, of which nine by knockout and 20 via submission, and eight losses.
Gaethje has won 23 of his 26 professional matches, of which 19 via knock.
This will be the American's second chance in his career to win a UFC belt,
The gala's only title match will now be the one in the women's straw weight between champion Rose Namajunas and challenger Carla Esparza.
MORE MARTY SPORT: Emptiness in Cederroo's locker room after the title match: "Very disappointed" (May 1, 2022)
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Elin Cederroos in the locker room after the loss together with coach Alexander Wennersten.
Photo: Joel Marklund / Bildbyrån