Former UFC heavyweight contender and current Dirty Boxing champion Jairzinho “Bigi Boy” Rozenstruik has been arrested in Florida and faces multiple charges stemming from an alleged domestic violence incident through which he’s accused of biting his partner during a heated argument.
Ex-UFC fighter Jairzinho Rosenstruik was arrested in Florida on a pair of charges including a third-degree felony for false imprisonment.
I’ve requested a police report but have not received it yet.
DETAILS: https://t.co/e2SoOiVerq pic.twitter.com/gX11HbBYBF
— Damon Martin (@DamonMartin) January 21, 2026
Based on police and court records out of Pembroke Pines, Rozenstruik, 37, was taken into custody on Monday and booked on a third-degree felony charge of false imprisonment in addition to a misdemeanor count of touch or strike/battery/domestic violence. Bond was set at a combined $3,500, however the Surinamese heavyweight stays in custody under an immigration hold, complicating any immediate release.
Details from the arrest report paint an unsightly scene. Rozenstruik and the lady, identified in local reports as his wife and mother of his two children, allegedly began arguing while driving back from a storage unit. When she selected to disregard him, Rozenstruik is accused of slapping her hand, knocking her phone to the ground, and later stopping her from leaving the vehicle by grabbing her arm.
The situation allegedly escalated in a bank car parking zone, where Rozenstruik again is alleged to have stopped her from exiting the automobile. After he reportedly tried to kiss her and he or she rebuffed him, calling him a “nasty beast,” Rozenstruik allegedly bit her on the proper bicep. Officers documented a visual bite mark, redness on each forearms, and a scratch or bruise beneath her right eye after they later contacted the lady.
Police concluded Rozenstruik was the first aggressor and arrested the veteran heavyweight on domestic violence-related charges. As of midweek, he remained housed at Broward County’s Fundamental Jail.
Rozenstruik was a mainstay within the UFC’s heavyweight top 10 during a six-year run with the promotion, banking high-profile wins over names like Andrei Arlovski, Junior dos Santos, and Alistair Overeem before parting ways with the organization in 2025. He has since reinvented himself in Mike Perry’s upstart Dirty Boxing promotion, where he captured the heavyweight title and began 2-0 with a pair of knockouts.
Neither Rozenstruik nor his representatives have issued a public statement, and the case now moves into the courts, adding one other troubling chapter to MMA’s ongoing struggle with domestic violence incidents involving energetic and former fighters.