Maccabi Haifa – Feyenoord
Maccabi Tel Aviv – Alashkert FC
Referee: Espen Eskas (NOR)
Assistant Referee 1: Morten Jensen (NOR)
Assistant Referee 2: Oystein Ytterland (NOR)
Fourth Official: Kai Steeen (NOR)
Referee Observer: Augustus Constantin (ROU)
Kairat Almaty – Omonia FC
Referee: Sergii Boiko (UKR)
Assistant Referee 1: Viktor Matyash (UKR)
Assistant Referee 2: Viktor Nyzhnyk (UKR)
Fourth Official: Vitaly Romanov (UKR)
Referee Observer: Albano Janku (ALB)
HJK Helsinki – LASK
Referee: Kirill Levenikov (RUS)
Assistant Referee 1: Egor Bolkhovitin (RUS)
Assistant Referee 2: Andrei Vereteshkin (RUS)
Fourth Official: Vladislav Bezborodov (RUS)
Referee Observer: Edward Foley (IRL)
Flora Tallinn – KAA Gent
Referee: Trustin Farrugia Cann (MLT)
Assistant Referee 1: Luke Portelli (MLT)
Assistant Referee 2: Duncan Sultana (MLT)
Fourth Official: Philip Farrugia (MLT)
Referee Observer: Gevorg Hovhannisyan (ARM)
Slavia Praha – Union Berlin
Referee: Fabio Verissimo (POR)
Assistant Referee 1: Rui Teixeira (POR)
Assistant Referee 2: Pedro Mota (POR)
Fourth Official: Andre Narciso (POR)
Referee Observer: Marinus Koopman (NED)
Lincoln Red Imps – PAOK FC
Referee: Robert Harvey (IRL)
Assistant Referee 1: Wayne McDonnell (IRL)
Assistant Referee 2: Darragh Keegan (IRL)
Fourth Official: Neil Doyle (IRL)
Referee Observer: Niklas a Lídarenda (FRO)
Slovan Bratislava – FC Copenhagen
Referee: Michael Fabbri (ITA)
Assistant Referee 1: Giorgio Peretti (ITA)
Assistant Referee 2: Daniele Bindoni (ITA)
Fourth Official: Luca Pairetto (ITA)
Referee Observer: Boško Jovanetić (SRB)
NS Mura – Vitesse
Referee: Mohammed Al-Hakim (SWE)
Assistant Referee 1: Fredrik Klyver (SWE)
Assistant Referee 2: Niklas Nyberg (SWE)
Fourth Official: Adam Ladebäck (SWE)
Referee Observer: Andrejs Sipailo (LVA)
Stade Rennais – Tottenham Hotspur
Referee: Halis Ozkahya (TUR)
Assistant Referee 1: Ibrahim Uyarcan (TUR)
Assistant Referee 2: Ali Ögel (TUR)
Fourth Official: Alper Ulusoy (TUR)
Referee Observer: Zbigniew Przesmycki (POL)
Qarabag Agdam – FC Basel
Referee: Erik Lambrechts (BEL)
Assistant Referee 1: Rien Vanyzere (BEL)
Assistant Referee 2: Jo De Weirdt (BEL)
Fourth Official: Wim Smet (BEL)
Referee Observer: John Ward (IRL)
Anorthosis Famagusta – FK Partizan
Referee: Peter Kjaersgaard (DEN)
Assistant Referee 1: Victor Skytte (DEN)
Assistant Referee 2: Jesper Dahl (DEN)
Fourth Official: Jörgen Burchardt (DEN)
Referee Observer: Raymond Ellingham (WAL)
Bodo Glimt – Zorya Luhansk
Referee: Dennis Higler (NED)
Assistant Referee 1: Charles Schaap (NED)
Assistant Referee 2: Mario Diks (NED)
Fourth Official: Sander van der Eijk (NED)
Referee Observer: Martin Hansson (SWE)
AS Roma – CSKA Sofia
Referee: Glenn Nyberg (SWE)
Assistant Referee 1: Mahbod Beigi (SWE)
Assistant Referee 2: Andreas Söderkvist (SWE)
Fourth Official: Victor Wolf (SWE)
Referee Observer: Uno Tutk (EST)
Randers FC – AZ Alkmaar
Referee: Duje Strukan (CRO)
Assistant Referee 1: Goran Perica (CRO)
Assistant Referee 2: Alen Jakšić (CRO)
Fourth Official: Ivan Bebek (CRO)
Referee Observer: Robert Sedlacek (AUT)
FK Jablonec – CFR Cluj
Referee: Enea Jorgji (ALB)
Assistant Referee 1: Ridiger Çokaj (ALB)
Assistant Referee 2: Denis Rexha (ALB)
Fourth Official: Eldorjan Hamiti (ALB)
Referee Observer: Neale Barry (ENG)
Referee: Fabio Maresca (ITA, photo)
Assistant Referee 1: Ciro Carbone (ITA)
Assistant Referee 2: Stefano Alassio (ITA)
Fourth Official: Rosario Abisso (ITA)
Referee Observer: Stavros Tritsonis (GRE)
Maccabi Tel Aviv – Alashkert FC
Referee: Espen Eskas (NOR)
Assistant Referee 1: Morten Jensen (NOR)
Assistant Referee 2: Oystein Ytterland (NOR)
Fourth Official: Kai Steeen (NOR)
Referee Observer: Augustus Constantin (ROU)
Kairat Almaty – Omonia FC
Referee: Sergii Boiko (UKR)
Assistant Referee 1: Viktor Matyash (UKR)
Assistant Referee 2: Viktor Nyzhnyk (UKR)
Fourth Official: Vitaly Romanov (UKR)
Referee Observer: Albano Janku (ALB)
HJK Helsinki – LASK
Referee: Kirill Levenikov (RUS)
Assistant Referee 1: Egor Bolkhovitin (RUS)
Assistant Referee 2: Andrei Vereteshkin (RUS)
Fourth Official: Vladislav Bezborodov (RUS)
Referee Observer: Edward Foley (IRL)
Flora Tallinn – KAA Gent
Referee: Trustin Farrugia Cann (MLT)
Assistant Referee 1: Luke Portelli (MLT)
Assistant Referee 2: Duncan Sultana (MLT)
Fourth Official: Philip Farrugia (MLT)
Referee Observer: Gevorg Hovhannisyan (ARM)
Slavia Praha – Union Berlin
Referee: Fabio Verissimo (POR)
Assistant Referee 1: Rui Teixeira (POR)
Assistant Referee 2: Pedro Mota (POR)
Fourth Official: Andre Narciso (POR)
Referee Observer: Marinus Koopman (NED)
Lincoln Red Imps – PAOK FC
Referee: Robert Harvey (IRL)
Assistant Referee 1: Wayne McDonnell (IRL)
Assistant Referee 2: Darragh Keegan (IRL)
Fourth Official: Neil Doyle (IRL)
Referee Observer: Niklas a Lídarenda (FRO)
Slovan Bratislava – FC Copenhagen
Referee: Michael Fabbri (ITA)
Assistant Referee 1: Giorgio Peretti (ITA)
Assistant Referee 2: Daniele Bindoni (ITA)
Fourth Official: Luca Pairetto (ITA)
Referee Observer: Boško Jovanetić (SRB)
NS Mura – Vitesse
Referee: Mohammed Al-Hakim (SWE)
Assistant Referee 1: Fredrik Klyver (SWE)
Assistant Referee 2: Niklas Nyberg (SWE)
Fourth Official: Adam Ladebäck (SWE)
Referee Observer: Andrejs Sipailo (LVA)
Stade Rennais – Tottenham Hotspur
Referee: Halis Ozkahya (TUR)
Assistant Referee 1: Ibrahim Uyarcan (TUR)
Assistant Referee 2: Ali Ögel (TUR)
Fourth Official: Alper Ulusoy (TUR)
Referee Observer: Zbigniew Przesmycki (POL)
Qarabag Agdam – FC Basel
Referee: Erik Lambrechts (BEL)
Assistant Referee 1: Rien Vanyzere (BEL)
Assistant Referee 2: Jo De Weirdt (BEL)
Fourth Official: Wim Smet (BEL)
Referee Observer: John Ward (IRL)
Anorthosis Famagusta – FK Partizan
Referee: Peter Kjaersgaard (DEN)
Assistant Referee 1: Victor Skytte (DEN)
Assistant Referee 2: Jesper Dahl (DEN)
Fourth Official: Jörgen Burchardt (DEN)
Referee Observer: Raymond Ellingham (WAL)
Bodo Glimt – Zorya Luhansk
Referee: Dennis Higler (NED)
Assistant Referee 1: Charles Schaap (NED)
Assistant Referee 2: Mario Diks (NED)
Fourth Official: Sander van der Eijk (NED)
Referee Observer: Martin Hansson (SWE)
AS Roma – CSKA Sofia
Referee: Glenn Nyberg (SWE)
Assistant Referee 1: Mahbod Beigi (SWE)
Assistant Referee 2: Andreas Söderkvist (SWE)
Fourth Official: Victor Wolf (SWE)
Referee Observer: Uno Tutk (EST)
Randers FC – AZ Alkmaar
Referee: Duje Strukan (CRO)
Assistant Referee 1: Goran Perica (CRO)
Assistant Referee 2: Alen Jakšić (CRO)
Fourth Official: Ivan Bebek (CRO)
Referee Observer: Robert Sedlacek (AUT)
FK Jablonec – CFR Cluj
Referee: Enea Jorgji (ALB)
Assistant Referee 1: Ridiger Çokaj (ALB)
Assistant Referee 2: Denis Rexha (ALB)
Fourth Official: Eldorjan Hamiti (ALB)
Referee Observer: Neale Barry (ENG)