Europa League 2020/21 - Referee Appointments for Semifinals First Legs

UEFA Referees Committee has chosen the following officials to handle 2020-21 Europa League's Semifinals First Legs. 

29 April 2021

21:00 CET - Manchester (Old Trafford)
Manchester United FC (ENG) - AS Roma (ITA)
Referee: Carlos del Cerro Grande (ESP)
Assistant Referee 1: Juan Carlos Yuste Jiménez (ESP)
Assistant Referee 2: Roberto Alonso Fernández (ESP)
Fourth Official: Jesús Gil Manzano (ESP)
Video Assistant Referee: Alejandro José Hernández Hernández (ESP)
Assistant Video Assistant Referee: Ricardo de Burgos Bengoetxea (ESP)
UEFA Referee Observer: Pascal Garibian (FRA)
UEFA Delegate: Balázs Makray (HUN)

21:00 CET - Villarreal (Estadio de la Cerámica)
Villarreal CF (ESP) - Arsenal FC (ENG) 

Referee: Artur Dias (POR)
Assistant Referee 1: Rui Tavares (POR)
Assistant Referee 2: Paulo Soares (POR)
Fourth Official: Tiago Martins (POR)
Video Assistant Referee: João Pinheiro (POR)
Assistant Video Assistant Referee: Luis Godinho (POR)
UEFA Referee Observer: Mehmet Murat Ilgaz (TUR) 
UEFA Delegate: Jovan Šurbatović (SRB)