19-20 February 2019GNK Dinamo – Lokomotiv Moskva
Referee: Fabio Costa Veríssimo (POR, photo)
Assistant Referee 1: Pedro Almeid (POR)
Assistant Referee 2: Pedro Martins (POR)
Fourth Official: Ivan Vučković (CRO)
Referee Observer: Igor Pristovnik (CRO)
Hertha BSC – Paris Saint Germain
Referee: Manuel Schüttengruber (AUT)
Assistant Referee 1: Roland Brandner (AUT)
Assistant Referee 2: Stefan Kühr (AUT)
Fourth Official: Christof Günsch (GER)
Referee Observer: Helmut Fleischer (GER)
PAOK FC – Tottenham Hotspur
Referee: Jérôme Brisard (FRA)
Assistant Referee 1: Benjamin Pages (FRA)
Assistant Referee 2: François Boudikian (FRA)
Referee Observer: Ioánnis Tsachilídis (GRE)
Chelsea FC – AS Monaco
Referee: Vilhjálmur Thorarinsson (ISL)
Assistant Referee 1: Gylfi Sigurdsson (ISL)
Assistant Referee 2: Gylfi Tryggvason (ISL)
Fourth Official: John Busby (ENG)
Referee Observer: Edward Foley (IRL)
Dynamo Kyiv – Juventus
Referee: Jens Maae (DEN)
Assistant Referee 1: Lars Hummelgaard (DEN)
Assistant Referee 2: Jesper Dahl (DEN)
Fourth Official: Mykola Balakin (UKR)
Referee Observer: Volodymyr Petrov (UKR)
FC Midtjylland – AS Roma
Referee: Juri Frischer (EST)
Assistant Referee 1: Veiko Mõtsnik (EST)
Assistant Referee 2: Sander Saga (EST)
Fourth Official: Morten Krogh (DEN)
Referee Observer: Jørn West Larsen (DEN)
Montpellier – Benfica
Referee: Alexandre Boucaut (BEL)
Assistant Referee 1: Laurent Conotte (BEL)
Assistant Referee 2: Jimmy Cremers (BEL)
Fourth Official: Arnaud Baert (FRA)
Referee Observer: David Malcolm (NIR)
Sigma Olomouc – Olympique Lyonnais
Referee: Enea Jorgji (ALB)
Assistant Referee 1: Denis Rexha (ALB)
Assistant Referee 2: Nertil Bregasi (ALB)
Fourth Official: Jan Machálek (CZE)
Referee Observer: Miroslav Tulinger (CZE)