UFC fighter leaves fans seriously worried after shocking footage emerges of his behaviour during press conference

UFC star Paulo Costa has caused some concern among fans due to his recent behaviour during the press conference for his upcoming fight.

In the early hours of Sunday morning, UFC legend Dustin Poirier will enter the octagon for the final time as he finishes his career with a BMF title fight in his home state of Louisiana.

He faces former foe and current BMF champion Max Holloway in a five-round main event held at the Smoothie King Center in New Orleans.

In the co-main event, former middleweight title challenger Costa faces Russia's Roman Kopylov in what promises to be an exciting striking matchup.

However, ahead the fight with Kopylov, some fans have raised some major concerns about Costa after spotting how he was acting during the press conference for the fight card.

Ahead of UFC 318, Dana White hosted a press conference featuring fighters from across the main card of the evening, including Costa.

Although the Brazilian initially appeared to be fine, when he was later asked a question about potentially facing rival Khamzat Chimaev in a future fight, fans noticed Costa acting strangely.

As he was asked the question, Costa appeared to be uncontrollably shaking and twitching as he bounced on the spot.

When he began answering the question, Costa struggled through his answer, slurring his words before pausing and rubbing his face as he continued to twitch.

Reacting to the clip on social media, one fan wrote: "Bad case of anxiety or something, not a good look."

While one asked: "Is Paulo ok? he’s twitching like crazy."

And one suggested: "Apparently it’s from severe weight cutting."

And another fan claimed: "He needs to change weight classes, clearly struggling with the cut and he's not beating Khamzat."

Paulo Costa says he has ‘unfinished business’ with Khamzat Chimaev:

“After this fight I’m gonna send a message for him.” 😳

🎥 @ufc #UFC318pic.twitter.com/QraTMkxAZV

— Championship Rounds (@ChampRDS) July 17, 2025

Costa's rivalry with Chimaev was sparked earlier in the week after the 34-year-old revealed that the popular Emirati fighter had been messaging Costa's girlfriend on social media and saying some 'very bad' things about him.

Chimaev is currently set to challenge middleweight champion Dricus du Plessis in the main event of UFC 319 on August 16, having earned a title shot with a dominant and brutal win over former champion Robert Whittaker.

His unbeaten run to the title could have included a match with Costa after the pair were scheduled to fight in October 2023 at UFC 294, but the fight was cancelled after Costa developed an elbow infection.