UEFA Champions League – Round of 16 (Second Leg)

6 March 2012
Arsenal – AC Milan
Referee: Damir Skomina (SVN, photo)
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)

Benfica – Zenit St. Petersburg
Referee: Howard Webb (ENG)
Assistant Referee 1: Michael Mullarkey (ENG)
Assistant Referee 2: Stephen Child (ENG)
Additional AR 1: Martin Atkinson (ENG)
Additional AR 2: Mark Clattenburg (ENG)
Fourth Official: Michael Dean (ENG)

7 March 2012
Apoel – Olympique Lyon
Referee: Alberto Undiano Mallenco (ESP)
Assistant Referee 1: Roberto Alonso Fernandez (ESP)
Assistant Referee 2: Jesus Calvo Guadamuro (ESP)
Additional AR 1: Antonio Mateu Lahoz (ESP)
Additional AR 2: Cesar Muniz Fernandez (ESP)
Fourth Official: Fernando Teixeira Vitienes (ESP)

FC Barcelona – Bayer Leverkusen
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: Tommy Skjerven (NOR)