Overview
- Žižović collapsed 22 minutes into Radnički 1923’s Super League match at Mladost in Lučani and received on-site medical treatment before being taken to a hospital.
 - The Football Association of Serbia confirmed his sudden death in an official statement and offered condolences to his family and club.
 - The match was halted during the emergency, briefly resumed after his transport, then was abandoned when players were informed, prompting visible distress on the pitch.
 - Multiple outlets reported a heart attack as the cause of the collapse, though officials have not detailed medical findings publicly.
 - Tributes arrived from leading Serbian clubs including Partizan and Red Star, as coverage noted his recent appointment at Radnički 1923 and prior tenure at Borac Banja Luka.