In the knockout round of the Group Stage of the UEFA Europa League-2022/2023 in group D, «Union» (Germany) – «Union Saint-Gilloise» (Belgium), which will take place on September 8 in Berlin, Ukrainian referees will officiate. The main referee will be Serhiy Boyko. He will be assisted by Semen Shlonchak and Oleksandr Zhukov on the lines. The fourth official is Vitaliy Romanov. The VAR referee is Pol van Bucel, and the assistant VAR referee is Dennis Hugler (both – Netherlands).