UEFA Champions League – Round of 16 (First Leg)

14 February 2012
Olympique Lyon – Apoel Nicosia
Referee: Paolo Tagliavento (ITA, photo)
Assistant Referee 1: Renato Faverani (ITA)
Assistant Referee 2: Luca Maggiani (ITA)
Additional AR 1: Luca Banti (ITA)
Additional AR 2: Andrea De Marco (ITA)
Fourth Official: Paolo Valeri (ITA)

Bayer Leverkusen – FC Barcelona
Referee: Craig Thomson (SCO)
Assistant Referee 1: Alasdair Ross (SCO)
Assistant Referee 2: Derek Rose (SCO)
Additional AR 1: William Collum (SCO)
Additional AR 2: Euan Norris (SCO)
Fourth Official: Steven McLean (SCO)

15 February 2012
Zenit St. Petersburg – Benfica Lisbon
Referee: Jonas Eriksson (SWE)
Assistant Referee 1: Stefan Wittberg (SWE)
Assistant Referee 2: Fredrik Nilsson (SWE)
Additional AR 1: Markus Strombergsson (SWE)
Additional AR 2: Stefan Johannesson (SWE)
Fourth Official: Daniel Stalhammar (SWE)

AC Milan – Arsenal London
Referee: Viktor Kassai (HUN)
Assistant Referee 1: Gabor Eros (HUN)
Assistant Referee 2: Gyorgy Ring (HUN)
Additional AR 1: Istvan Vad (HUN)
Additional AR 2: Mihaly Fabian (HUN)
Fourth Official: Tamas Bognar (HUN)