UEFA Champions League – Quarter-finals (First Leg)

27 March 2012
Benfica Lisbon – Chelsea London
Referee: Paolo Tagliavento (ITA, photo)
Assistant Referee 1: Andrea Stefani (ITA)
Assistant Referee 2: Luca Maggiani (ITA)
Additional AR 1: Daniele Orsato (ITA)
Additional AR 2: Luca Banti (ITA)
Fourth Official: Paolo Valeri (ITA)

Apoel Nicosia – Real Madrid
Referee: Felix Brych (GER)
Assistant Referee 1: Mark Borsch (GER)
Assistant Referee 2: Stefan Lupp (GER)
Additional AR 1: Markus Wingenbach (GER)
Additional AR 2: Peter Sippel (GER)
Fourth Official: Knut Kircher (GER)

28 March 2012
Olympique Marseille – Bayern Munchen

Referee: Carlos Velasco Carballo (ESP)
Assistant Referee 1: Roberto Alonso Fernandez (ESP)
Assistant Referee 2: Juan Yuste Jimenez (ESP)
Additional AR 1: David Fernandez Borbalan (ESP)
Additional AR 2: Carlos Clos Gomez (ESP)
Fourth Official: Fernando Teixeira Vitienes (ESP)

AC Milan – FC Barcelona

Referee: Jonas Eriksson (SWE)
Assistant Referee 1: Stefan Wittberg (SWE)
Assistant Referee 2: Mathias Klasenius (SWE)
Additional AR 1: Markus Strombergsson (SWE)
Additional AR 2: Stefan Johannesson (SWE)
Fourth Official: Daniel Stalhammar (SWE)