AZ Alkmaar – FC Porto
Referee: Ivana Projkovska MKD (photo)
Assistant Referee 1: Goce Petreski MKD
Assistant Referee 2: Kuštrim Lika MKD
Fourth Official: Erwin Blank NED
Referee Observer: Rudy Bossen NED
MSK Žilina – FC Copenhagen
Referee: Joey Kooij NED
Assistant Referee 1: Patrick Inia NED
Assistant Referee 2: Dyon Fikkert NED
Fourth Official: Michal Očenaš SVK
Referee Observer: Marian Ružbarsky SVK
FSV Mainz – Manchester City
Referee: Atilla Karaoglan TUR
Assistant Referee 1: Ceyhun Sesigüzel TUR
Assistant Referee 2: Cevdet Kömürcüoglu TUR
Fourth Official: Patrick Schwengers GER
Referee Observer: Alain Hamer LUX
28 February 2024
Olympiacos SFP – RC Lens
Referee: David Šmajc SVN
Assistant Referee 1: David Gabrovec SVN
Assistant Referee 2: Matic Mežnar SVN
Fourth Official: Georgios Balachoutis GRE
Referee Observer: Albano Janku ALB
AC Milan – SC Braga
Referee: Miloš Milanović SRB
Assistant Referee 1: Novak Novaković SRB
Assistant Referee 2: Nemanja Todorović SRB
Fourth Official: Marco Monaldi ITA
Referee Observer: Salustia Cipres AND
FC Salzburg – FC Nantes
Referee: Mohammad Aslam NOR
Assistant Referee 1: Jorgen Valstadsve NOR
Assistant Referee 2: Alf Rossland NOR
Fourth Official: Florian Jäger AUT
Referee Observer: Stefan Messner AUT
Bayern München – Feyenoord Rotterdam
Referee: Robert Jenkins WAL
Assistant Referee 1: Daniel Beckett WAL
Assistant Referee 2: Ashley Davis WAL
Fourth Official: Wolfgang Haslberger GER
Referee Observer: Vadims Direktorenko LVA
Real Madrid – RB Leipzig
Referee: Vasilios Fotias GRE
Assistant Referee 1: Andreas Meindanas GRE
Assistant Referee 2: Vasilios Nikolakakis GRE
Fourth Official: Manuel Perez Hernandez ESP
Referee Observer: Ferenc Szekely HUN
Referee: Ivana Projkovska MKD (photo)
Assistant Referee 1: Goce Petreski MKD
Assistant Referee 2: Kuštrim Lika MKD
Fourth Official: Erwin Blank NED
Referee Observer: Rudy Bossen NED
MSK Žilina – FC Copenhagen
Referee: Joey Kooij NED
Assistant Referee 1: Patrick Inia NED
Assistant Referee 2: Dyon Fikkert NED
Fourth Official: Michal Očenaš SVK
Referee Observer: Marian Ružbarsky SVK
FSV Mainz – Manchester City
Referee: Atilla Karaoglan TUR
Assistant Referee 1: Ceyhun Sesigüzel TUR
Assistant Referee 2: Cevdet Kömürcüoglu TUR
Fourth Official: Patrick Schwengers GER
Referee Observer: Alain Hamer LUX
28 February 2024
Olympiacos SFP – RC Lens
Referee: David Šmajc SVN
Assistant Referee 1: David Gabrovec SVN
Assistant Referee 2: Matic Mežnar SVN
Fourth Official: Georgios Balachoutis GRE
Referee Observer: Albano Janku ALB
AC Milan – SC Braga
Referee: Miloš Milanović SRB
Assistant Referee 1: Novak Novaković SRB
Assistant Referee 2: Nemanja Todorović SRB
Fourth Official: Marco Monaldi ITA
Referee Observer: Salustia Cipres AND
FC Salzburg – FC Nantes
Referee: Mohammad Aslam NOR
Assistant Referee 1: Jorgen Valstadsve NOR
Assistant Referee 2: Alf Rossland NOR
Fourth Official: Florian Jäger AUT
Referee Observer: Stefan Messner AUT
Bayern München – Feyenoord Rotterdam
Referee: Robert Jenkins WAL
Assistant Referee 1: Daniel Beckett WAL
Assistant Referee 2: Ashley Davis WAL
Fourth Official: Wolfgang Haslberger GER
Referee Observer: Vadims Direktorenko LVA
Real Madrid – RB Leipzig
Referee: Vasilios Fotias GRE
Assistant Referee 1: Andreas Meindanas GRE
Assistant Referee 2: Vasilios Nikolakakis GRE
Fourth Official: Manuel Perez Hernandez ESP
Referee Observer: Ferenc Szekely HUN