UFC’s Antonio Trocoli arrested for misdemeanor battery allegedly involving Mackenzie Dern’s ex-husband

Antonio Trocoli was arrested this past Friday on misdemeanor battery charges in Huntington Beach, Calif., following an incident allegedly involving Mackenzie Dern’s ex-husband, Wesley Santos.

Huntington Beach police confirmed the UFC fighter’s arrest in an email to MMA Fighting on Wednesday.

“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.”

At this time, the Orange County district attorney’s office has not officially brought a case against the fighter following his arrest. Messages for further details on the case were not returned at the time of publication.

While police weren’t able to provide any further details on Trocoli’s arrest, Santos—a professional surfer who was previously married to Dern and shares a daughter with her—claims he was the victim in the battery.

Santos sent a statement to MMA Fighting about the alleged incident while also claiming that a video exists that captured the altercation from this past Friday.

“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.”

Trocoli is yet to address the incident or arrest publicly.

The Brazilian fighter was actually signed and then released from the UFC back in 2019 after his Contender Series win was overturned to a no-contest when he tested positive for a banned substance. Trocoli eventually came back to the UFC with his debut back in June when he fell to Shara Magomedov. He is currently scheduled to fight Tresean Gore at a UFC Fight Night event scheduled for Nov. 9.