23 August 2011Genk – Maccabi Haifa
Referee: Howard Webb (ENG, photo)
Assistant Referee 1: Darren Cann (ENG)
Assistant Referee 2: Michael Mullarkey (ENG)
Additional AR 1: Michael Oliver (ENG)
Additional AR 2: Kevin Friend (ENG)
Fourth Official: Lee Mason (ENG)
Apoel – Wisla Krakow
Referee: Viktor Kassai (HUN)
Assistant Referee 1: Gabor Eros (HUN)
Assistant Referee 2: Robert Kispal (HUN)
Additional AR1: Mihaly Fabian (HUN)
Additional AR 2: Tamas Bognar (HUN)
Fourth Official: Sandor Szabo (HUN)
Malmo – Dinamo Zagreb
Referee: Nicola Rizzoli (ITA)
Assistant Referee 1: Renato Faverani (ITA)
Assistant Referee 2: Luca Maggiani (ITA)
Additional AR 1: Mauro Bergonzi (ITA)
Additional AR 2: Daniele Orsato (ITA)
Fourth Official: Andrea Romeo (ITA)
Villareal – Odense
Referee: Craig Thomson (SCO)
Assistant Referee 1: Francis Andrews (SCO)
Assistant Referee 2: Alasdair Ross (SCO)
Additional AR 1: Steven McLean (SCO)
Additional AR 2: Stephen O'Reilly (SCO)
Fourth Official: Iain Robertson Brines (SCO)
Zurich – Bayern
Referee: Laurent Duhamel (FRA)
Assistant Referee 1: Michel Annonier (FRA)
Assistant Referee 2: Christophe Capelli (FRA)
Additional AR 1: Wilfried Bien (FRA)
Additional AR 2: Nicolas Rainville (FRA)
Fourth Official: Lionel Jaffredo (FRA)
24 August 2011
Rubin – Lyon
Referee: Frank De Bleeckere (BEL)
Assistant Referee 1: Peter Hermans (BEL)
Assistant Referee 2: Yves De Neve (BEL)
Additional AR 1: Sebastien Delferiere (BEL)
Additional AR 2: Christof Dierick (BEL)
Fourth Official: Luc Wouters
Plzen – Kobenhavn
Referee: Carlos Velasco Carballo (ESP)
Assistant Referee 1: Roberto Alonso Fernandez (ESP)
Assistant Referee 2: Jesus Calvo Guadamuro (ESP)
Additional AR 1: Carlos Clos Gomez (ESP)
Additional AR 2: Fernando Teixeira Vitienes (ESP)
Fourth Official: Carlos Del Cerro Grande (ESP)
Sturm – Bate Borisov
Referee: Jonas Eriksson (SWE)
Assistant Referee 1: Stefan Wittberg (SWE)
Assistant Referee 2: Mathias Klasenius (SWE)
Additional AR 1: Daniel Stalhammar (SWE)
Additional AR 2: Tobias Mattsson (SWE)
Fourth Official: Martin Strombergsson (SWE)
Benfica – Twente
Referee: Felix Brych (GER)
Assistant Referee 1: Thorsten Shiffner (GER)
Assistant Referee 2: Mark Borch (GER)
Additional AR 1: Babak Rafati (GER)
Additional AR 2: Tobias Welz (GER)
Fourth Official: Gunter Perl (GER)
Udinese – Arsenal
Referee: Olegario Benquerenca (POR)
Assistant Referee 1: Bertino Miranda (POR)
Assistant Referee 2: Joao Santos (POR)
Additional AR 1: Artur Soares (POR)
Additional AR 2: Carlos Xistra (POR)
Fourth Official: Manuel Gomez (POR)
