MMA fighter Zhivko Stoimenov was arrested by Sofia police after a signal reporting severe physical violence against his girlfriend, according to local police confirmation reported by Blitz. The incident happened in the capital district of Borovo. A 29-year-old man was taken into custody immediately on site, and prosecutors opened a case with a pre-trial investigation underway. Authorities did not name the accused publicly in the confirmation, but the athlete is described as one of the known figures in Bulgarian combat sports. He recently signed a contract for four fights in the European MMA organization FNC in the middleweight category. Police said the case started after the submitted report about the alleged abuse. The investigation is continuing, with the next procedural steps not detailed in the available information. Stoimenov remains under police custody as the investigation continues in Sofia following his arrest.