Europa League 2018/19 - Quarterfinals - Referee Appointments (II)

UEFA Referees Committee has chosen the following officials to handle the second leg games to be played for Quarterfinals of 2018/19 Europa League.

18 April 2019, 21:00 CET - Naples (Stadio San Paolo)
SSC Napoli (ITA) - Arsenal FC (ENG)
Referee: Ovidiu Alin Hațegan (ROU)
Assistant Referee 1: Octavian Șovre (ROU)
Assistant Referee 2: Sebastian Eugen Gheorghe (ROU)
Fourth Official: Radu Adrian Ștefan Ghinguleac (ROU)
Additional Assistant Referee 1: Radu Marian Petrescu (ROU)
Additional Assistant Referee 2: Sebastian Constantin Colțescu (ROU)
UEFA Referee Observer: Markus Nobs (SUI)
UEFA Delegate: Radenko Mijatovič (SVN)

18 April 2019, 21:00 CET - València (Mestalla, camp del València)
Valencia CF (ESP) - Villarreal CF (ESP)
Referee: William Collum (SCO)
Assistant Referee 1: David McGeachie (SCO)
Assistant Referee 2: Francis Connor (SCO)
Fourth Official: Graeme Stewart (SCO)
Additional Assistant Referee 1: Robert Madden (SCO)
Additional Assistant Referee 2: Nicolas Walsh (SCO)
UEFA Referee Observer: Vítor Manuel Melo Pereira (POR)
UEFA Delegate: Jozef Kliment (SVK)

18 April 2019, 21:00 CET - Frankfurt am Main (Commerzbank-Arena)
Eintracht Frankfurt (GER) - SL Benfica (POR)
Referee: Daniele Orsato (ITA)
Assistant Referee 1: Lorenzo Manganelli (ITA)
Assistant Referee 2: Alessandro Costanzo (ITA)
Fourth Official: Fabiano Preti (ITA)
Additional Assistant Referee 1: Marco Di Bello (ITA)
Additional Assistant Referee 2: Daniele Doveri (ITA)
UEFA Referee Observer: Hans Reijgwart (NED)
UEFA Delegate: Michael Foster (ENG)

18 April 2019, 21:00 CET - London (Stamford Bridge)
Chelsea FC (ENG) - SK Slavia Praha (CZE)
Referee: Damir Skomina (SVN)
Assistant Referee 1: Jure Praprotnik (SVN)
Assistant Referee 2: Robert Vukan (SVN)
Fourth Official: Tomaž Klančnik (SVN)
Additional Assistant Referee 1: Slavko Vinčič (SVN)
Additional Assistant Referee 2: Matej Jug (SVN)
UEFA Referee Observer: Manuel Díaz Vega (ESP)
UEFA Delegate: Roland Tis (BEL)