Fenerbahce – Sevilla FC
Referee: Michael Oliver (ENG, photo)
Assistant Referee 1: Stuart Burt (ENG)
Assistant Referee 2: Simon Bennett (ENG)
Fourth Official: Andrew Madley (ENG)
VAR: Stuart Attwell (ENG)
AVAR: David Coote (ENG)
Referee Observer: Martin Ingvarsson (SWE)
SC Freiburg – Juventus FC
Referee: Serdar Gözübüyük (NED)
Assistant Referee 1: Erwin Zeinstra (NED)
Assistant Referee 2: Johan Balder (NED)
Fourth Official: Joey Kooij (NED)
VAR: Dennis Higler (NED)
AVAR: Rob Dieperink (NED)
Referee Observer: Manuel Díaz Vega (ESP)
Real Betis – Manchester United
Referee: Srdjan Jovanović (SRB)
Assistant Referee 1: Uroš Stojković (SRB)
Assistant Referee 2: Milan Mihajlović (SRB)
Fourth Official: Novak Simović (SRB)
VAR: Paolo Valeri (ITA)
AVAR: Daniele Doveri (ITA)
Referee Observer: Marinus Koopman (NED)
Feyenoord – Shakhtar Donetsk
Referee: Jesus Gil Manzano (ESP)
Assistant Referee 1: Angel Nevado Rodriguez (ESP)
Assistant Referee 2: Iker De Francisco Grijalba (ESP)
Fourth Official: Jose Munuera Montero (ESP)
VAR: Juan Martinez Munuera (ESP)
AVAR: Cesar Soto Grado (ESP)
Referee Observer: Helmut Fleischer (GER)
Union St. Gilloise – Union Berlin
Referee: Jose Sanchez Martinez (ESP)
Assistant Referee 1: Raul Cabanero Martinez (ESP)
Assistant Referee 2: Inigo Prieto Lopez (ESP)
Fourth Official: Pablo Gonzalez Fuertes (ESP)
VAR: Guillermo Cuadra Fernandez (ESP)
AVAR: Jose Gonzalez Gonzalez (ESP)
Referee Observer: Murat Ilgaz (TUR)
Ferencvarosi TC – Bayer Leverkusen
Referee: Artur Dias (POR)
Assistant Referee 1: Paulo Soares (POR)
Assistant Referee 2: Pedro Ribeiro (POR)
Fourth Official: Antonio Nobre (POR)
VAR: Tiago Martins (POR)
AVAR: Luis Godinho (POR)
Referee Observer: Alain Hamer (LUX)
Arsenal FC – Sporting CP
Referee: Antonio Mateu Lahoz (ESP)
Assistant Referee 1: Pau Cebrian Devis (ESP)
Assistant Referee 2: Roberto Diaz Perez (ESP)
Fourth Official: Ricardo De Burgos Bengoetxea (ESP)
VAR: Massimiliano Irrati (ITA)
AVAR: Ignacio Iglesias Villanueva (ESP)
Referee Observer: Andreas Schluchter (SUI)
Real Sociedad – AS Roma
Referee: Istvan Kovacs (ROU)
Assistant Referee 1: Vasile Marinescu (ROU)
Assistant Referee 2: Mihai Artene (ROU)
Fourth Official: Horațiu Feșnic (ROU)
VAR: Bastian Dankert (GER)
AVAR: Sören Storks (GER)
Referee Observer: Thomas Einwaller (AUT)