FC Basel – Olympique de Marseille
Referee: Artur Soares Dias (POR, photo)
Assistant Referee 1: Rui Tavares (POR)
Assistant Referee 2: Paulo Soares (POR)
Fourth Official: Tiago Martins (POR)
Referee Observer: Neale Barry (ENG)
Stade Rennais – Leicester City
Referee: Anastasios Sidiropoulos (GRE)
Assistant Referee 1: Polychronis Kostaras (GRE)
Assistant Referee 2: Lazaros Dimitriadis (GRE)
Fourth Official: Aristotelis Diamantopoulos (GRE)
Referee Observer: Stefano Podeschi (SMR)
FC Copenhagen – PSV Eindhoven
Referee: William Collum (SCO)
Assistant Referee 1: David McGeachie (SCO)
Assistant Referee 2: Francis Connor (SCO)
Fourth Official: Nicholas Walsh (SCO)
Referee Observer: Miroslav Tulinger (CZE)
AZ Alkmaar – Bodo Glimt
Referee: Ivan Kružliak (SVK)
Assistant Referee 1: Branislav Hancko (SVK)
Assistant Referee 2: Jan Pozor (SVK)
Fourth Official: Peter Kralović (SVK)
Referee Observer: Peter Sippel (GER)
Feyenoord – Partizan
Referee: Anthony Taylor (ENG)
Assistant Referee 1: Gary Beswick (ENG)
Assistant Referee 2: Adam Nunn (ENG)
Fourth Official: Darren England (ENG)
Referee Observer: Robert Sedlacek (AUT)
LASK – Slavia Praha
Referee: Lawrence Visser (BEL)
Assistant Referee 1: Rien Vanyzere (BEL)
Assistant Referee 2: Thibaud Nijssen (BEL)
Fourth Official: Bram Van Driessche (BEL)
Referee Observer: Erol Ersoy (TUR)
KAA Gent – PAOK FC
Referee: Daniel Siebert (GER)
Assistant Referee 1: Jan Seidel (GER)
Assistant Referee 2: Rafael Foltyn (GER)
Fourth Official: Sven Jablonski (GER)
Referee Observer: Miroslav Liba (CZE)
AS Roma – Vitesse
Referee: Radu Petrescu (ROU)
Assistant Referee 1: Radu Ghinguleac (ROU)
Assistant Referee 2: Mihai Marica (ROU)
Fourth Official: Marcel Bîrsan (ROU)
Referee Observer: Orhan Erdemir (TUR)