UEFA Europa League – Quarter-finals (Second Leg)

10 April 2014

Valencia – Basel
Referee: Viktor Kassai (HUN, photo)
Assistant Referee 1: György Ring (HUN)
Assistant Referee 2: Vencel Tóth (HUN)
Additional AR 1: Tamás Bognar (HUN)
Additional AR 2: Sándor Andó-Szabó (HUN)
Fourth Official: Robert Kispál (HUN)
Referee Observer: Nuno Castro (POR)

Benfica – Alkmaar
Referee: Pavel Královec (CZE)
Assistant Referee 1: Roman Slyško (SVK)
Assistant Referee 2: Martin Wilczek (CZE)
Additional AR 1: Radek Příhoda (CZE)
Additional AR 2: Michal Patak (CZE)
Fourth Official: Antonin Kordula (CZE)
Referee Observer: Rune Pedersen (NOR)

Sevilla – FC Porto
Referee: Gianluca Rocchi (ITA)
Assistant Referee 1: Elenito Di Liberatore (ITA)
Assistant Referee 2: Mauro Tonolini (ITA)
Additional AR 1: Daniele Orsato (ITA)
Additional AR 2: Paolo Valeri (ITA)
Fourth Official: Riccardo Di Fiore (ITA)
Referee Observer: Peter Fröjdfeldt (SWE)

Juventus Turin – Olympique Lyon
Referee: Alberto Undiano Mallenco (ESP)
Assistant Referee 1: Raúl Cabañero Martínez (ESP)
Assistant Referee 2: Juan Yuste Jiménez (ESP)
Additional AR 1: Fernando Teixeira Vitienes (ESP)
Additional AR 2: Javier Estrada Fernández (ESP)
Fourth Official: José Fernández Miranda (ESP)
Referee Observer: Michael Riley (ENG)