TSC Backa Topola – Jagiellonia Bialystok
Referee: António Nobre POR (photo)
Assistant Referee 1: Pedro Ribeiro POR
Assistant Referee 2: Nelson Pereira POR
Fourth Official: Fabio Verissimo POR
VAR: Helder Malheiro POR
AVAR: Fábio Melo POR
Referee Observer: Marinus Koopman NED
Celje – Apoel
Referee: Mykola Balakin UKR
Assistant Referee 1: Oleksandr Berkut UKR
Assistant Referee 2: Dmytro Zaporozhenko UKR
Fourth Official: Vitaliy Romanov UKR
VAR: Viktor Kopiievskyi UKR
AVAR: Oleksii Derevinskyi UKR
Referee Observer: Jørn West Larsen DEN
Vikingur – Panathinaikos
Referee: Rohit Saggi NOR
Assistant Referee 1: Morten Jensen NOR
Assistant Referee 2: Anders Olav Dale NOR
Fourth Official: Sigurd Kringstad NOR
VAR: Tom Hagen NOR
AVAR: Kristoffer Hagenes NOR
Referee Observer: David Malcolm NIR
FK Molde – Shamrock Rovers
Referee: Andris Treimanis LVA
Assistant Referee 1: Haralds Gudermanis LVA
Assistant Referee 2: Aleksejs Spasennikovs LVA
Fourth Official: Aleksandrs Golubevs LVA
VAR: Kristaps Ratnieks LVA
AVAR: Vitalijs Spasjoņņikovs LVA
Referee Observer: William Young SCO
KAA Gent – Real Betis
Referee: Horațiu Feșnic ROU
Assistant Referee 1: Valentin Avram ROU
Assistant Referee 2: Alexandru Cerei ROU
Fourth Official: Rares Vidican ROU
VAR: Cătălin Popa ROU
AVAR: Sebastian Colţescu ROU
Referee Observer: Helmut Fleischer GER
Borac Banja Luka – Olimpija Ljubljana
Referee: Radu Petrescu ROU
Assistant Referee 1: Radu Ghinguleac ROU
Assistant Referee 2: Mircea Grigoriu ROU
Fourth Official: Marcel Birsan ROU
VAR: Ovidiu Haţegan ROU
AVAR: Adrian Costreie ROU
Referee Observer: Murat Ilgaz TUR
Omonia – Pafos
Referee: Simone Sozza ITA
Assistant Referee 1: Giorgio Peretti ITA
Assistant Referee 2: Alessio Berti ITA
Fourth Official: Matteo Marchetti ITA
VAR: Gianluca Aureliano ITA
AVAR: Valerio Marini ITA
Referee Observer: Terje Hauge NOR
FC Copenhagen – FC Heidenheim
Referee: Anastasios Papapetrou GRE
Assistant Referee 1: Tryfon Petropoulos GRE
Assistant Referee 2: Reinhart Buxbaoum GRE
Fourth Official: Alexandros Tsakalidis GRE
VAR: Angelos Evangelou GRE
AVAR: Stefanos Koumparakis GRE
Referee Observer: Boško Jovanetić SRB
