UFC Fighter Antonio Trócoli Arrested, Accused Of Assaulting Mackenzie Dern’s Ex-Husband

UFC middleweight Antonio Trócoli was arrested in California last Friday on misdemeanor battery charges.

The Brazilian was apprehended following an incident in Huntington Beach, which allegedly involved the ex-husband of UFC strawweight contender Mackenzie Dern, to whom Trócoli is now married.

The arrest was confirmed by police in an email to MMA Fighting this week.

“A subject by the name of Antonio Trocoli da Silveira Filho was arrested by the Huntington Beach Police Department on Oct. 4, 2024, at approximately 8:30 a.m. in the 8700 block of Dolphin Street, Huntington Beach,” Huntington Beach police said in a statement. “He was arrested for misdemeanor battery, and the case has been sent to the Orange County District Attorney’s Officer for review.”

The Orange County district attorney’s office has not officially brought a case against Trócoli, 33, who lost his short-notice UFC debut to Sharabutdin Magomedov in Saudi Arabia this past June.

Dern’s Ex-Husband Claims Video Shows Trócoli Punching Him

Although official details provided by police are scarce, Dern’s ex-husband sent a statement to MMA Fighting in which he claims to have been the victim of Trócoli’s alleged assault.

Wesley Santos — a professional surfer who was formerly married to Dern and has a daughter, Moa, with the strawweight fighter — accused Trócoli of ongoing harassment, including sending abusive messages by way of his child.

He claims things came to a head last Friday after he dropped his daughter off at school, following which he says Trócoli pulled up in a car and proceeded to strike him before fleeing.

“Mackenzie Dern is my ex-wife and after our divorce she married Antonio ‘Malvado’ Jose Trocoli da Silveira Filho,” Santos said. “We divorced and have shared custody of our daughter Moa, but Antonio never stopped following me. We had a deal that he would not be part of the custody but he was always nearby, threatening and disturbing in every custody change. He sent messages through Moa, saying he would beat me up, and Moa told me clearly.

“I dropped my daughter at school this past Friday and was going back home on a skateboard when I saw a white car stop, and I started recording. It was Antonio. He got out of the car and punched me, and the car kept moving [along], and he ran back inside the car. Cops were called, there were several witnesses, and Antonio was arrested for battery.”

Dern and Santos’ divorce played out publicly in 2023 , with the pair exchanging accusations of domestic abuse.

In court, the UFC fighter claimed to have been the victim of repeated physical and emotional abuse throughout her marriage with Santos, alleging to have once had a door slammed on her leg while being dragged out of their house during a fight.

The pro surfer responded by accusing Dern of similar abuse, providing evidence of a bloody nose that he claimed was caused by a punch from his then-wife.

Trócoli is yet to comment on his arrest and the charges against him. He’s currently scheduled to return for his second UFC outing against Tresean Gore at the Apex on Nov. 9.

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