Paulo Costa’s media day appearance ahead of UFC 318 sent shockwaves through the MMA world after he openly accused Khamzat Chimaev of privately messaging his girlfriend with inappropriate and disrespectful comments. Costa didn’t mince words, calling the alleged DMs “cowardly” and describing Chimaev’s behavior as a direct personal attack. The emotional weight of the incident was evident as Costa stated that he wants to fight Chimaev not just to win, but to cause him pain. Although Costa is set to face Roman Kopylov in the co-main event, his mind appears consumed by the fallout with Chimaev, making it clear that this is now personal.
In his detailed statement to reporters in New Orleans, Costa claimed Chimaev had crossed a serious line by messaging his girlfriend with messages implying she deserved a better man. Costa condemned it as dirty behavior, expressing disbelief and anger that Chimaev chose to involve his partner instead of addressing him directly. The Brazilian fighter insisted that regardless of how Chimaev fares in his upcoming title shot at UFC 319, their clash must happen—unless, as Costa provocatively stated, Chimaev decides to retire. This is not the first time the two have been linked, as they were previously scheduled to fight at UFC 294 before Costa pulled out due to a medical issue.
Chimaev responded swiftly on social media with characteristic mockery. Posting a clip of Costa appearing visibly emotional during his press interview, Chimaev sarcastically wrote, “Bro, what’s going on with you? Don’t start to cry please.” The taunt quickly went viral, fueling debate among fans over whether Costa’s intensity was a sign of genuine anger or a mental edge lost. The insinuation that Costa was “shaking just talking about you” added another layer of intrigue to an already volatile situation. Despite Costa’s serious tone, Chimaev continues to frame the dispute as a joke, further widening the rift between them.
Looking ahead, Costa remains focused on his UFC 318 bout against Kopylov, but he made it clear that any victory would be immediately followed by a callout aimed directly at Chimaev. The feud is no longer about rankings or titles—it has become a personal vendetta, and Costa seems determined to settle it in the octagon. With Chimaev gearing up to face Dricus du Plessis at UFC 319, the possibility of a grudge match between the two hot-headed fighters lingers just over the horizon, promising explosive drama if it ever materializes.