UEFA Champions League – Group Stage (Matchday 1)

17 September 2013
Real Sociedad – Shakhtar Donetsk
Referee: Ovidiu Hategan (ROU, photo)
Assistant Referee 1: Cristian Nica (ROU)

Assistant Referee 2: Octavian Sovre (ROU)
Additional AR 1: Alexandru Tudor (ROU)
Additional AR 2: Sebastian Coltescu (ROU)
Fourth Official: Miklos Nagy (ROU)
Referee Observer: Bo Karlsson (SWE)

Manchester United – Bayer Leverkusen
Referee: Damir Skomina (SVN)
Assistant Referee 1: Matej Zunic (SVN)
Assistant Referee 2: Bojan Ul (SVN)
Additional AR 1: Slavko Vincic (SVN)
Additional AR 2: Roberto Ponis (SVN)
Fourth Official: Primoz Arhar (SVN)
Referee Observer: Murat Ilgaz (TUR)

FC Kobenhavn – Juventus Turin
Referee: Ivan Bebek (CRO)
Assistant Referee 1: Tomislav Petrovic (CRO)
Assistant Referee 2: Miro Grgic (CRO)
Additional AR 1: Domagoj Vuckov (CRO)
Additional AR 2: Goran Gabrilo (CRO)
Fourth Official: Dalibor Conjar (CRO)
Referee Observer: William Young (SCO)

Galatasaray – Real Madrid
Referee: Mark Clattenburg (ENG)
Assistant Referee 1: Simon Beck (ENG)
Assistant Referee 2: Stephen Child (ENG)
Additional AR 1: Lee Probert (ENG)
Additional AR 2: Jonathan Moss (ENG)
Fourth Official: Michael Mullarkey (ENG)
Referee Observer: Horst Brummeier (AUT)

Benfica – Anderlecht
Referee: Manuel Grafe (GER)
Assistant Referee 1: Thorsten Schiffner (GER)
Assistant Referee 2: Guido Kleve (GER)
Additional AR 1: Guido Winkmann (GER)
Additional AR 2: Daniel Siebert (GER)
Fourth Official: Holger Henschel (GER)
Referee Observer: Jaap Uilenberg (NED)

Olympiakos – Paris SG
Referee: Felix Brych (GER)
Assistant Referee 1: Mark Borsch (GER)
Assistant Referee 2: Stefan Lupp (GER)
Additional AR 1: Tobias Welz (GER)
Additional AR 2: Tobias Stieler (GER)
Fourth Official: Markus Hacker (GER)
Referee Observer: Patrick Kelly (IRL)

Viktoria Plzen – Manchester City
Referee: Paolo Tagliavento (ITA)
Assistant Referee 1: Mauro Tonolini (ITA)
Assistant Referee 2: Lorenzo Manganelli (ITA)
Additional AR 1: Andrea De Marco (ITA)
Additional AR 2: Paolo Valeri (ITA)
Fourth Official: Nicola Nicoletti (ITA)
Referee Observer: Bernardino Gonzalez (ESP)

Bayern Munchen – CSKA Moskva
Referee: Gianluca Rocchi (ITA)
Assistant Referee 1: Gianluca Cariolato (ITA)
Assistant Referee 2: Sandro Pozzi (SUI)
Additional AR 1: Luca Banti (ITA)
Additional AR 2: Antonio Damato (ITA)
Fourth Official: Riccardo Di Fiore (ITA)
Referee Observer: Sandor Piller (HUN)

18 September 2013
Chelsea – Basel
Referee: Daniele Orsato (ITA)
Assistant Referee 1: Andrea Stefani (ITA)
Assistant Referee 2: Renato Faverani (ITA)
Additional AR 1: Paolo Mazzoleni (ITA)
Additional AR 2: Andrea Gervasoni (ITA)
Fourth Official: Alessandro Giallatini (ITA)
Referee Observer: Ryszard Wojcik (POL)

Schalke – Steaua Bucuresti
Referee: Cuneyt Cakir (TUR)
Assistant Referee 1: Bahattin Duran (TUR)
Assistant Referee 2: Tarik Ongun (TUR)
Additional AR 1: Baris Simsek (TUR)
Additional AR 2: Mete Kalkavan (TUR)
Fourth Official: Cem Satman (TUR)
Referee Observer: Francesco Bianchi (SUI)

SSC Napoli – Borussia Dortmund
Referee: Pedro Proenca (POR)
Assistant Referee 1: Bertino Miranda (POR)
Assistant Referee 2: Tiago Trigo (POR)
Additional AR 1: Joao Capela (POR)
Additional AR 2: Duarte Gomes (POR)
Fourth Official: Venancio Tome (POR)
Referee Observer: Manuel Diaz Vega (ESP)

Austria Wien – FC Porto
Referee: Craig Thomson (SCO)
Assistant Referee 1: Alan Mulvanny (SCO)
Assistant Referee 2: David McGeachie (SCO)
Additional AR 1: Steven McLean (SCO)
Additional AR 2: Kevin Clancy (SCO)
Fourth Official: Derek Rose (SCO)
Referee Observer: Christos Skapoullis (CYP)

Olympique Marseille – Arsenal
Referee: Olegario Benquerenca (POR)
Assistant Referee 1: Ricardo Santos (POR)
Assistant Referee 2: Rui Barbosa (POR)
Additional AR 1: Artur Soares (POR)
Additional AR 2: Carlos Taborda (POR)
Fourth Official: Joao Santos (POR)
Referee Observer: Uno Tutk (EST)

Atletico Madrid – Zenit St. Petersburg
Referee: William Collum (SCO)
Assistant Referee 1: Martin Cryans (SCO)
Assistant Referee 2: William Conquer (SCO)
Additional AR 1: Robert Madden (SCO)
Additional AR 2: John Beaton (SCO)
Fourth Official: Gavin Harris (SCO)
Referee Observer: Vitor Melo Pereira (POR)

AC Milan – Celtic Glasgow
Referee: Wolfgang Stark (GER)
Assistant Referee 1: Jan-Hendrik Salver (GER)
Assistant Referee 2: Mike Pickel (GER)
Additional AR 1: Marco Fritz (GER)
Additional AR 2: Robert Hartmann (GER)
Fourth Official: Christoph Bornhorst (GER)
Referee Observer: Nuno Castro (POR)

FC Barcelona – Ajax Amsterdam
Referee: Svein Oddvar Moen (NOR)
Assistant Referee 1: Kim Haglund (NOR)
Assistant Referee 2: Frank Andas (NOR)
Additional AR 1: Dag Vidar Hafsas (NOR)
Additional AR 2: Svein-Erik Edvartsen (NOR)
Fourth Official: Sven Erik Midthjell (NOR)
Referee Observer: Levan Paniashvili (GEO)