KRC Genk – FC Köln
Referee: Robert Jenkins (WAL, photo)
Assistant Referee 1: Ian Bird (WAL)
Assistant Referee 2: Connor Thomas (WAL)
Fourth Official: Kevin Debeuckelaere (BEL)
Referee Observer: Helmut Fleischer (GER)
Akademia e Futbollit – Septemvri Sofia
Referee: Igor Stojčevski (MKD)
Assistant Referee 1: Goce Petreski (MKD)
Assistant Referee 2: Slagan Markoski (MKD)
Fourth Official: Olsion Yzeiraj (ALB)
Referee Observer: Albano Janku (ALB)
FC Midtjylland – Rosenborg BK
Referee: Keith Kennedy (NIR)
Assistant Referee 1: Jamie Carnduff (NIR)
Assistant Referee 2: John Doherty (NIR)
Referee Observer: Jan Carlsen (DEN)
AZ Alkmaar – Qabala IK
Referee: Dario Bel (CRO)
Assistant Referee 1: Marjan Tomas (CRO)
Assistant Referee 2: Kruno Šarić (CRO)
Fourth Official: Erwin Blank (NED)
Referee Observer: Rien Koopman (NED)
FC Minsk – BFC Daugavpils
Referee: Henrik Nalbandyan (ARM)
Assistant Referee 1: Atom Sevgulyan (ARM)
Assistant Referee 2: Sargis Hovhannisyan (ARM)
Fourth Official: Anton Lašuk (BLR)
Referee Observer: Alieh Čykun (BLR)
Qairat Almaty – Apoel FC
Referee: Ion Orlic (MDA)
Assistant Referee 1: Vasilie Ermișchin (MDA)
Assistant Referee 2: Natalia Ceban (MDA)
Fourth Official: Daniyar Sahi (KAZ)
Referee Observer: Pavel Saliy (KAZ)
Trabzonspor – FK Zvijezda
Referee: Georgi Davidov (BUL)
Assistant Referee 1: Georgi Doynov (BUL)
Assistant Referee 2: Petar Dzhuganski (BUL)
Fourth Official: Bülent Birincioğlu (TUR)
Referee Observer: Erol Ersoy (TUR)
Sparta Praha – MTK Budapest
Referee: Luka Bilbija (BIH)
Assistant Referee 1: Amer Macić (BIH)
Assistant Referee 2: Damir Lazić (BIH)
Fourth Official: Tomáš Klíma (CZE)
Referee Observer: Michal Beneš (CZE)
Maccabi Haifa – Žalgiris Vilnius
Referee: Emmanouil Skoulas (GRE)
Assistant Referee 1: Konstantinos Nikolaidis (GRE)
Assistant Referee 2: Andreas Meintanas (GRE)
Fourth Official: Idan Leiba (ISR)
Referee Observer: Shmuel Shteif (ISR)
MŠK Žilina – PAOK FC
Referee: Dzmitryj Dzmitryjeu (BLR)
Assistant Referee 1: Dzianis Jemialjančykau (BLR)
Assistant Referee 2: Siarhiej Firynovič (BLR)
Fourth Official: Michal Očenaš (SVK)
Referee Observer: Vladimir Medved (SVK)
Hajduk Split – KF Shkendija
Referee: Christian Ciochirca (AUT)
Assistant Referee 1: Santino Schreiner (AUT)
Assistant Referee 2: Michael Obritzberger (AUT)
Fourth Official: Ante Jurić (CRO)
Referee Observer: Draženko Kovačić (CRO)
Crvena Zvezda – Saint Patrick's Athletic
Referee: Manfredas Lukjančukas (LTU)
Assistant Referee 1: Edgaras Bučinskas (LTU)
Assistant Referee 2: Gevork Arakelian (LTU)
Fourth Official: Milan Stefanović (SRB)
Referee Observer: Zoran Petrović (SRB)
Angers SCO – AFK Csikszereda
Referee: Nikolas Neokleous (CYP)
Assistant Referee 1: Giorgos Savva (CYP)
Assistant Referee 2: Stefanos Anastasiou (CYP)
Fourth Official: Benjamin Lepaysant (FRA)
Referee Observer: Bertrand Layec (FRA)
Empoli FC – NK Domžale
Referee: Gergő Bogar (HUN)
Assistant Referee 1: Theodoros Georgiou (HUN)
Assistant Referee 2: Peter Garai (HUN)
Fourth Official: Manuel Volpi (ITA)
Referee Observer: Stefano Podeschi (SMR)
Hammarby Fotboll – Rangers FC
Referee: Kristoffer Hagenes (NOR)
Assistant Referee 1: Anders Dale (NOR)
Assistant Referee 2: Christer Jorgensen (NOR)
Fourth Official: Enzo Vesprini (SWE)
Referee Observer: Martin Hansson (SWE)
Deportivo La Coruna – Pogon Szczecin
Referee: Bram Van Driessche (BEL)
Assistant Referee 1: Yves De Neve (BEL)
Assistant Referee 2: Mathias Hillaert (BEL)
Fourth Official: Alexandre Lopez Vila (ESP)
Referee Observer: Alberto Undiano Mallenco (ESP)