4 July 2017
Trepca – Víkingur
Referee: Alexander Harkam (AUT, photo)
Assistant Referee 1: Markus Gutschi (AUT)
Assistant Referee 2: Stefan Gamper (AUT)
Fourth Official: Christopher Jäger (AUT)
Referee Observer: Marcel Vanelshocht (BEL)
Tallinn – Hibernians
Referee: Alex Troleis (FRO)
Assistant Referee 1: Petur Højgaard (FRO)
Assistant Referee 2: Johnleif Gerðisá (FRO)
Fourth Official: Dagfinn Forná (FRO)
Referee Observer: Aleh Chykun (BLR)
Europa – The New Saints
Referee: Lawrence Visser (BEL)
Assistant Referee 1: Karel De Rocker (BEL)
Assistant Referee 2: Jo De Weirdt (BEL)
Fourth Official: Bram Van Driessche (BEL)
Referee Observer: Edward Foley (IRL)
La Fiorita – Linfield
Referee: Fyodor Zammit (MLT)
Assistant Referee 1: Luke Portelli (MLT)
Assistant Referee 2: Christopher Francalanza (MLT)
Fourth Official: Stefan Pace (MLT)
Referee Observer: Jens Larsen (DEN)
Santa Coloma – Alashkert
Referee: Sven Bindels (LUX)
Assistant Referee 1: Claude Ries (LUX)
Assistant Referee 2: Ricardo Morais (LUX)
Fourth Official: Alex Krüger (LUX)
Referee Observer: Stephen Lodge (ENG)