AC Fiorentina – Istanbul Başakşehir
Referee: Allard Lindhout (NED, photo)
Assistant Referee 1: Mario Diks (NED)
Assistant Referee 2: Charles Schaap (NED)
Fourth Official: Edwin Van De Graaf (NED)
Referee Observer: Stefan Johannesson (SWE)
Anderlecht – FCSB
Referee: Manfredas Lukjančukas (LTU)
Assistant Referee 1: Vytenis Kazlauskas (LTU)
Assistant Referee 2: Mangirdas Mirauskas (LTU)
Fourth Official: Robertas Šmitas (LTU)
Referee Observer: Gylfi Orrason (ISL)
Villarreal – Hapoel Beer Sheva
Referee: Juxhin Xhaja (ALB)
Assistant Referee 1:Nertil Bregasi (ALB)
Assistant Referee 2: Dojando Myftari (ALB)
Fourth Official: Kreshnik Barjamaj (ALB)
Referee Observer: Miroslav Liba (CZE)
Austria Wien – Lech
Referee: Darren England (ENG)
Assistant Referee 1: Harry Lennard (ENG)
Assistant Referee 2: James Mainwaring (ENG)
Fourth Official: Nicholas Walsh (SCO)
Referee Observer: Laurent Duhamel (FRA)
Slovacko – FC Köln
Referee: Giorgi Kruashvili (GEO)
Assistant Referee 1: Levan Varamishvili (GEO)
Assistant Referee 2: Zaza Pipia (GEO)
Fourth Official: Davit Kharitonashvili (GEO)
Referee Observer: Ante Vučemilović-Šimunović (CRO)
OGC Nice – FK Partizan
Referee: Istvan Vad (HUN)
Assistant Referee 1: Vencel Toth (HUN)
Assistant Referee 2: Istvan Albert (HUN)
Fourth Official: Adam Farkas (HUN)
Referee Observer: Robert Schörgenhofer (AUT)
FC Vaduz – AZ Alkmaar
Referee: Donald Robertson (SCO)
Assistant Referee 1: Aln Mulvanny (SCO)
Assistant Referee 2: Ross MacLeod (SCO)
Fourth Official: Grant Irvine (SCO)
Referee Observer: Stavros Tritsonis (GRE)
Heart of Midlothian – RFS
Referee: Bram Van Driessche (BEL)
Assistant Referee 1: Yves De Neve (BEL)
Assistant Referee 2: Kevin Monteny (BEL)
Fourth Official: Kevin Van Damme (BEL)
Referee Observer: Cyril Zimmermann (SUI)
West Ham – Silkeborg
Referee: Joni Hyytiä (FIN)
Assistant Referee 1: Sami Nykänen (FIN)
Assistant Referee 2: Veli-Matti Leppänen (FIN)
Fourth Official: Antti Munukka (FIN)
Referee Observer: Gerard Perry (IRL)
Dnipro – Apollon Limassol
Referee: Antonio Nobre (POR)
Assistant Referee 1: Pedro Ribeiro (POR)
Assistant Referee 2: Nelson Pereira (POR)
Fourth Official: Ricardo Baixinho (POR)
Referee Observer: Igor Pristovnik (CRO)
Molde – Djurgarden
Referee: Urs Schnyder (SUI)
Assistant Referee 1: Marco Zürcher (SUI)
Assistant Referee 2: Benjamin Zürcher (SUI)
Fourth Official: Sven Wolfensberger (SUI)
Referee Observer: Stephen Lodge (ENG)
Shamrock Rovers – KAA Gent
Referee: Julian Weinberger (AUT)
Assistant Referee 1: Maximilian Weiss (AUT)
Assistant Referee 2: Sara Telek (AUT)
Fourth Official: Alexander Harkam (AUT)
Referee Observer: Nicolae Grigorescu (ROU)
Ballkani – Slavia Praha
Referee: Morten Krogh (DEN)
Assistant Referee 1:Dennis Rasmussen (DEN)
Assistant Referee 2: Jesper Dahl (DEN)
Fourth Official: Mikkel Redder (DEN)
Referee Observer: Joao Ferreira (POR)
Sivasspor – CFR Cluj
Referee: Rohit Saggi (NOR)
Assistant Referee 1: Geir Isaksen (NOR)
Assistant Referee 2: Morten Jensen (NOR)
Fourth Official: Mohammad Aslam (NOR)
Referee Observer: Levan Paniashvili (GEO)
Basel – Zalgiris
Referee: Ali Palabiyik (TUR)
Assistant Referee 1: Serkan Olguncan (TUR)
Assistant Referee 2: Serkan Cimen (TUR)
Fourth Official: Ümit Öztürk (TUR)
Referee Observer: Thoroddur Hjaltalin (ISL)
Slovan Bratislava – Pyunik
Referee: Manuel Schüttengruber (AUT)
Assistant Referee 1: Roland Brandner (AUT)
Assistant Referee 2: Robert Steinacher (AUT)
Fourth Official: Sebastian Gishamer (AUT)
Referee Observer: Michael Johansen (DEN)
