Struga Trim Lum – Zalgiris Vilnius
Referee: Darren England (ENG, photo)
Assistant Referee 1: Lee Betts (ENG)
Assistant Referee 2: Daniel Robathan (ENG)
Fourth Official: Michael Salisbury (ENG)
VAR: David Coote (ENG)
AVAR: Nick Hopton (ENG)
Referee Observer: Gylfi Orrason (ISL)
Flora Tallinn – Rakow Częstochowa
Referee: Marian Barbu (ROU)
Assistant Referee 1: Mihai Marica (ROU)
Assistant Referee 2: Imre-Laszlo Bucsi (ROU)
Fourth Official: Marcel Bîrsan (ROU)
VAR: Hugo Miguel (POR)
AVAR: Helder Malheiro (POR)
Referee Observer: Costas Kapitanis (CYP)
Sheriff Tiraspol – Farul Constanța
Referee: Miguel Nogueira (POR)
Assistant Referee 1: Pedro Mota (POR)
Assistant Referee 2: Rui Teixeira (POR)
Fourth Official: Andre Narciso (POR)
VAR: Luis Godinho (POR)
AVAR: Bruno Esteves (POR)
Referee Observer: Andreas Schluchter (SUI)
Maccabi Haifa – Hamrun Spartans
Referee: Igor Pajač (CRO)
Assistant Referee 1: Hrvoje Radić (CRO)
Assistant Referee 2: Kristijan Novosel (CRO)
Fourth Official: Ante Čulina (CRO)
VAR: Duje Strukan (CRO)
AVAR: Ivan Bebek (CRO)
Referee Observer: Gunnar Jonsson (ISL)
The New Saints – BK Häcken
Referee: Dario Bel (CRO)
Assistant Referee 1: Goran Pataki (CRO)
Assistant Referee 2: Marjan Tomas (CRO)
Fourth Official: Patrik Kolarić (CRO)
VAR: Mario Zebec (CRO)
AVAR: Bojan Zobenica (CRO)
Referee Observer: Ruud Bossen (NED)
HSK Zrinjski – FC Urartu
Referee: Peter Kaersgaard (DEN)
Assistant Referee 1: Jesper Dahl (DEN)
Assistant Referee 2: Victor Skytte (DEN)
Fourth Official: Jacob Karlsen (DEN)
VAR: Jonas Hansen (DEN)
AVAR: Mads-Kristoffer Kristoffersen (DEN)
Referee Observer: Marco Borg (MLT)
Bate Borisov – FK Partizani
Referee: Kevin Clancy (SCO)
Assistant Referee 1: David McGeachie (SCO)
Assistant Referee 2: Jonathan Bell (SCO)
Fourth Official: David Munro (SCO)
VAR: Donald Robertson (SCO)
AVAR: David Roome (SCO)
Referee Observer: Shmuel Shteif (ISR)
Breidablik – Shamrock Rovers
Referee: Adam Ladebäck (SWE)
Assistant Referee 1: Mehmet Culum (SWE)
Assistant Referee 2: Daniel Yng (SWE)
Fourth Official: Granit Maqedonci (SWE)
VAR: Jochem Kamphuis (NED)
AVAR: Edwin van de Graaf (NED)
Referee Observer: Vadims Direktorenko (LVA)
Valmiera FC – Olimpija Ljubljana
Referee: Cesar Soto Grado (ESP)
Assistant Referee 1: Pau Cebrian Devis (ESP)
Assistant Referee 2: Carlos Alvarez Fernandez (ESP)
Fourth Official: Isidro Diaz Escuderos (ESP)
VAR: Jose Munuera Montero (ESP)
AVAR: Santiago Jaime Latre (ESP)
Referee Observer: Volodymyr Petrov (UKR)
Ferencvarosi TC – KI Klaksvik
Referee: David Šmajc (SVN)
Assistant Referee 1: David Gabrovec (SVN)
Assistant Referee 2: Tomaž Černe (SVN)
Fourth Official: Alen Borošak (SVN)
VAR: Nejc Kajtazovič (SVN)
AVAR: Asmir Sagrkovič (SVN)
Referee Observer: Howard Webb (ENG)
Qarabag FK – Lincoln Red Imps
Referee: Eldorjan Hamiti (ALB)
Assistant Referee 1: Ridiger Cokaj (ALB)
Assistant Referee 2: Ani Kociaj (ALB)
Fourth Official: Kreshnik Cjapi (ALB)
VA: Kreshnik Bajramaj (ALB)
AVAR: Olsid Ferataj (ALB)
Referee Observer: Uno Tutk (EST)
Dinamo Tbilisi – Astana FK
Referee: Stuart Attwell (ENG)
Assistant Referee 1: Stuart Burt (ENG)
Assistant Referee 2: Neil Davies (ENG)
Fourth Official: John Brooks (ENG)
VAR: Christopher Kavanagh (ENG)
AVAR: Timothy Wood (ENG)
Referee Observer: Gianluca Rocchi (ITA)
PFK Ludogorets – FC Balkani
Referee: Luca Pairetto (ITA)
Assistant Referee 1: Stefano Alassio (ITA)
Assistant Referee 2: Damiano Di Iorio (ITA)
Fourth Official: Matteo Marcenaro (ITA)
VAR: Aleandro Di Paolo (ITA)
AVAR: Federico La Penna (ITA)
Referee Observer: Helmut Fleischer (GER)
Swift Hesper – Slovan Bratislava
Referee: Abdulkadir Bitigen (TUR)
Assistant Referee 1: Ceyhun Sesigüzel (TUR)
Assistant Referee 2: Mustafa Savranlar (TUR)
Fourth Official: Bahattin Şimşek (TUR)
VAR: Alper Ulusoy (TUR)
AVAR: Neslihan Muratdagi (TUR)
Referee Observer: Markus Strömbergsson (SWE)
Larne FC – HJK Helsinki
Referee: Aristotelis Diamantopoulos (GRE)
Assistant Referee 1: Konstantinos Psarris (GRE)
Assistant Referee 2: Andreas Meindanas (GRE)
Fourth Official: Anastasios Papapetrou (GRE)
VAR: Evangelos Manouchos (GRE)
AVAR: Ioannis Papadopoulos (GRE)
Referee Observer: Drago Kos (SVN)