UEFA Europa League – Quarter-finals (Second Leg)

11 April 2013

Rubin Kazan – Chelsea
Referee: Firat Aydinus (TUR, photo)
Assistant Referee 1: Serkan Ok (TUR)
Assistant Referee 2: Aleks Tascioglu (TUR)
Additional AR 1: Baris Simsek (TUR)
Additional AR 2: Tolga Ozkalfa (TUR)
Fourth Official: Cem Satman (TUR)
Referee Observer: Horst Brummeier (AUT)

Basel – Tottenham
Referee: Olegario Benquerenca (POR)
Assistant Referee 1: Joao Santos (POR)
Assistant Referee 2: Ricardo Santos (POR)
Additional AR 1: Manuel De Sousa (POR)
Additional AR 2: Carlos Xistra (POR)
Fourth Official: Venancio Tome (POR)
Referee Observer: Juan Fernandez Marin (ESP)

Newcastle – Benfica
Referee: Ivan Bebek (CRO)
Assistant Referee 1: Tomislav Petrovic (CRO)
Assistant Referee 2: Miro Grgic (CRO)
Additional AR 1: Domagoj Vuckov (CRO)
Additional AR 2: Goran Gabrilo (CRO)
Fourth Official: Dalibor Conjar (CRO)
Referee Observer: Bo Karlsson (SWE)

Lazio – Fenerbahce
Referee: Pavel Kralovec (CZE)
Assistant Referee 1: Roman Slysko (SVK)
Assistant Referee 2: Martin Wilczek (CZE)
Additional AR 1: Radek Prihoda (CZE)
Additional AR 2: Michal Patak (CZE)
Fourth Official: Antonin Kordula (CZE)
Referee Observer: Vitor Melo Pereira (POR)