UEFA Champions League – Quarter-finals (Second Leg)

3 April 2012
FC Barcelona – AC Milan
Referee: Bjorn Kuipers (NED, photo)
Assistant Referee 1: Sander van Roekel (NED)
Assistant Referee 2: Erwin Zeinstra (NED)
Additional AR 1: Pol van Boekel (NED)
Additional AR 2: Richard Liesveld (NED)
Fourth Official: Bas Nijhuis (NED)

Bayern Munchen – Olympique Marseille

Referee: Svein Oddvar Moen (NOR)
Assistant Referee 1: Kim Thomas Haglund (NOR)
Assistant Referee 2: Frank Andas (NOR)
Additional AR 1: Tom Harald Hagen (NOR)
Additional AR 2: Ken Henry Johnsen (NOR)
Fourth Official: Espen Berntsen (NOR)

4 April 2012
Real Madrid – Apoel Nicosia

Referee: Gianluca Rocchi (ITA)
Assistant Referee 1: Luca Maggiani (ITA)
Assistant Referee 2: Elenito Di Liberatore (ITA)
Additional AR 1: Mauro Bergonzi (ITA)
Additional AR 2: Antonio Damato (ITA)
Fourth Official: Paolo Mazzoleni (ITA)

Chelsea London – Benfica Lisbon

Referee: Damir Skomina (SVN)
Assistant Referee 1: Primoz Arhar (SVN)
Assistant Referee 2: Marko Stancin (SVN)
Additional AR 1: Matej Jug (SVN)
Additional AR 2: Slavko Vincic (SVN)
Fourth Official: Mitja Zganec (SVN)