Midtjylland – Trabzonspor
Referee: Alex Troleis (FRO, photo)
Assistant Referee 1: Jon Johannesen (FRO)
Assistant Referee 2: Jogvan Breckmann (FRO)
Fourth Official: Sandi Putros (DEN)
Referee Observer: Jens Larsen (DEN)
Alkmaar – Angers
Referee: Robertas Valikonis (LTU)
Assistant Referee 1: Edgaras Bučinskas (LTU)
Assistant Referee 2: Benas Kikutis (LTU)
Fourth Official: Erwin Blank (NED)
Referee Observer: Rene Temmink (NED)
Genk – MTK
Referee: Ian McNabb (NIR)
Assistant Referee 1: Ryan Kelsey (NIR)
Assistant Referee 2: Adam Jeffrey (NIR)
Fourth Official: Kevin De Beuckelaere (BEL)
Referee Observer: Frank De Bleeckere (BEL)
Empoli – Crvena Zvezda
Referee: Allard Lindhout (NED)
Assistant Referee 1: Rens Bluemink (NED)
Assistant Referee 2: Roy De Nas (NED)
Fourth Official: Francesco Meraviglia (ITA)
Referee Observer: Matteo Trefoloni (ITA)
Kairat – Zilina
Referee: Viktor Shimusik (BLR)
Assistant Referee 1: Siarhei Firynovich (BLR)
Assistant Referee 2: Anton Paluyanau (BLR)
Fourth Official: Omarov Rustam (KAZ)
Referee Observer: Pavel Saliy (KAZ)
Minsk – Hajduk Split
Referee: Vitalijs Spasjoņņikovs (LVA)
Assistant Referee 1: Raimonds Tatriks (LVA)
Assistant Referee 2: Martinš Svipsts (LVA)
Fourth Official: Vitali Sevostyanik (BLR)
Referee Observer: Aleh Chykun (BLR)
Rangers – Septemvri
Referee: Sandi Putros (DEN)
Assistant Referee 1: Steffen Bramsen (DEN)
Assistant Referee 2: Daniel Norgaard (DEN)
Fourth Official: Grant Irvine (SCO)
Referee Observer: Iain Robrtson Brines (SCO)
Maccabi Haifa – La Coruna
Referee: Loukas Sotiriou (CYP)
Assistant Referee 1: Nikos Egglezou (CYP)
Assistant Referee 2: Eraklis Komodromos (CYP)
Fourth Official: Shalom Avraham (ISR)
Referee Observer: Alon Yefet (ISR)