“One of the Worst in History” – UFC 323 Freak Accident Ending Alexandre Pantoja’s Run Leaves Fans in Shock
Alexandre Pantoja loses 5th title defense due to a devastating arm injury, and Joshua Van is the new flyweight champion after UFC 323.
Alexandre Pantoja faces injury at UFC 323 (via X)
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A high-energy night at UFC 323 in Las Vegas looked set to deliver when Alexandre Pantoja and Joshua Van took the cage in one of the most anticipated bouts of the evening. The co-main event held strong promise for a competitive showdown between flyweight contenders. Spectators expected a whole fight, but the bout ended in shock after a sudden injury suffered by Pantoja in the first round.
Pantoja entered the fight eyeing his fifth consecutive title defense. His reign had marked him as one of the most active and dominant champions in flyweight history. The Brazilian’s rise from earlier struggles and working as an Uber driver while fighting in the UFC to the top of the division had made him a favorite among many observers. His blend of striking and grappling had consistently earned him victories.
The fight itself lasted only 26 seconds. Pantoja threw a high kick that was caught by Van, who then pushed him down. As Pantoja went to post on his arm while falling, his limb bent awkwardly, resulting in a catastrophic arm injury. The referee intervened immediately, and the bout was waved off. The abrupt and brutal nature of the injury turned the much-hyped clash into a tragic accident.
ALEXANDRE PANTOJA BREAKS HIS ARM…
— Championship Rounds (@ChampRDS) December 7, 2025
JOSHUA VAN IS THE NEW UFC FLYWEIGHT CHAMPION #UFC323 pic.twitter.com/iVIluueWKI
This angle of Alexandre Pantoja breaking his arm…
— Championship Rounds (@ChampRDS) December 7, 2025
You hate to see it 💔 #UFC323pic.twitter.com/Hs2EEbExqO
In the aftermath, Pantoja collapsed onto the canvas, visibly in pain and disappointment, and was quickly escorted out for medical evaluation. Van, though declared the winner and new champion, paused briefly as the extent of the injury became evident. The official announcement named Van the new flyweight champion under the injury-induced TKO ruling.
Pantoja’s reign had been built on wins against many of the division’s best. His recent run included victories over Kai Asakura, Kai Kara-France, and Brandon Royval, adding to a résumé stacked with top-10 opponents. These performances showcased his well-rounded skill set and durability at the elite level. His injury now interrupts one of the strongest flyweight stretches in recent years.
Meanwhile, Tatsuro Taira made a significant statement earlier in the night by stopping Brandon Moreno via TKO, strengthening his long-running push for a title shot. With Pantoja now sidelined and Van newly crowned, Taira stands out as a clear contender in the shifting division. The flyweight landscape now waits to see how Alexandre Pantoja’s recovery and the new title picture unfold.
Fans react to Alexandre Pantoja’s brutal injury at UFC 323
Fans immediately reacted to the shocking finish, noting this was the second recent UFC title fight to end through injury. Many compared it to UFC 321, where Tom Aspinall vs. Ciryl Gane ended in a no-contest after a double eye poke. Viewers expressed concern about championship bouts ending without clarity. The pattern left many questioning the recent run of unlucky title fights.

A large portion of fans expressed frustration over how quickly the fight ended and how little action unfolded. Many said the 26-second finish felt unentertaining after weeks of buildup. Others were devastated to see Alexandre Pantoja lose his title through an injury rather than a competitive exchange. The suddenness of his fall left fans emotionally deflated.
one of the worst arm injuries in the history of the sport
— pizza (@pizza_tweett) December 7, 2025
Brutal, brutal way for such a dominant champion to lose his belt…
— FightTalk (@Fight_Talk_) December 7, 2025
It should’ve been a no contest
— Muhammad Faizan Khursheed (@Faddy_Tweets) December 7, 2025
OMFG THIS IS BAD , and Pantoja only getting older 💔💔💔💔 , I’m genuinely crushed by this man
— 🏆 (@MMAEnjoyer87) December 7, 2025
INSANE end to that reign . Never would I expect that typa freak injury . Interested to see how they move forward
— Devon (@Dev2Trilll) December 7, 2025
One of the worst. Maybe worse than Silva or weidman…
— Nathan A. Bauman (@nathanabauman) December 7, 2025
This could be horrific for Pantoja. He's already 35, being out for a while with a horrific injury which might not properly heal could be very bad for him.
— Acatwithacamera (@Acatwithacamera) December 7, 2025
BRO CELEBRATING LIKE HE KNOCKED HIM OUT
— Minabollar55 (@minabollar55) December 7, 2025
Reactions also focused on Joshua Van’s celebration, with many calling it excessive given the shocking finish. Some argued the win didn’t feel entirely legitimate under the circumstances. Others still mentioned Alexandre Pantoja and thought he deserved more respect in the aftermath. The split opinions highlighted how messy and emotional the finish was for the fanbase.
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