Olympiakos – Fenerbahçe
Referee: Sandro Schärer SUI (photo)
Assistant Referee 1: Stephane De Almeida SUI
Assistant Referee 2: Bekim Zogaj SUI
Fourth Official: Alessandro Dudic SUI
VAR: Bastian Dankert GER
AVAR: Lionel Tschudi SUI
Referee Observer: Frank De Bleeckere BEL
Viktoria Plzen – ACF Fiorentina
Referee: Orel Grinfeeld ISR
Assistant Referee 1: Roy Hassan ISR
Assistant Referee 2: Idan Yarkoni ISR
Fourth Official: Gal Leibovitz ISR
VAR: Ziv Adler ISR
AVAR: Roi Reinshreiber ISR
Referee Observer: Vladimir Antonov MDA
Club Brugge – PAOK
Referee: Daniel Siebert GER
Assistant Referee 1: Jan Seidel GER
Assistant Referee 2: Rafael Foltyn GER
Fourth Official: Sven Jablonski GER
VAR: Marco Fritz GER
AVAR: Sören Storks GER
Referee Observer: Stefano Podeschi SMR
Aston Villa – LOSC Lille
Referee: Espen Eskas NOR
Assistant Referee 1: Jan Engan NOR
Assistant Referee 2: Isaak Bashevkin NOR
Fourth Official: Rohit Saggi NOR
VAR: Dennis Higler NED
AVAR: Pol van Boekel NED
Referee Observer: Carlos Velasco Carballo ESP
