UEFA Champions League – Round of 16 (First Leg, II)

25 February 2014
Olympiakos – Manchester United
Referee: Gianluca Rocchi (ITA, photo)
Assistant Referee 1: Elenito Di Liberatore (ITA)
Assistant Referee 2: Gianluca Cariolato (ITA)
Additional AR 1: Paolo Mazzoleni (ITA)
Additional AR 2: Paolo Valeri (ITA)
Fourth Official: Alessandro Giallatini (ITA)
Referee Observer: Zdravko Jokić (SRB)

Zenit St. Petersburg – Borussia Dortmund
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: Graham Chambers (SCO)
Referee Observer: Jozef Marko (SVK)

26 February 2014
FC Schalke – Real Madrid
Referee: Howard Webb (ENG)
Assistant Referee 1: Michael Mullarkey (ENG)
Assistant Referee 2: Darren Cann (ENG)
Additional AR 1: Lee Probert (ENG)
Additional AR 2: Kevin Friend (ENG)
Fourth Official: Stephen Child (ENG)
Referee Observer: Michel Vautrot (FRA)

Galatasaray Istanbul – Chelsea FC
Referee: Carlos Velasco Carballo (ESP)
Assistant Referee 1: Roberto Alonso Fernández (ESP)
Assistant Referee 2: Juan Yuste Jiménez (ESP)
Additional AR 1: Carlos Clos Gómez (ESP)
Additional AR 2: Carlos Del Cerro Grande (ESP)
Fourth Official: Roberto Díaz Pérez (ESP)
Referee Observer: Vaclav Krondl (CZE)