UEFA Champions League – Quarter-finals (First Leg)

9-10 April 2019

Liverpool – FC Porto
Referee: Antonio Mateu Lahoz (ESP, photo)
Assistant Referee 1: Pau Cebrián Devís (ESP)
Assistant Referee 2: Roberto Díaz Pérez (ESP)
Fourth Official: Ovidiu Hațegan (ROU)
VAR: Jesús Gil Manzano (ESP)
AVAR: José Sánchez Martínez (ESP)
Referee Observer: Eugen Strigel (GER)

Tottenham Hotspur – Manchester City
Referee: Björn Kuipers (NED)
Assistant Referee 1: Sander van Roekel (NED)
Assistant Referee 2: Erwin Zeinstra (NED)
Fourth Official: William Collum (SCO)
VAR: Danny Makkelie (NED)
AVAR: Pol van Boekel (NED)
Referee Observer: Jørn West Larsen (DEN)

AFC Ajax – Juventus
Referee: Carlos Del Cerro Grande (ESP)
Assistant Referee 1: Juan Yuste Jiménez (ESP)
Assistant Referee 2: Roberto Alonso Fernández (ESP)
Fourth Official: Anastásios Sidirópoulos (GRE)
VAR: Alejandro Hernández Hernández (ESP)
AVAR: Juan Martínez Munuera (ESP)
Referee Observer: Marc Batta (FRA)

Manchester United – FC Barcelona
Referee: Gianluca Rocchi (ITA)
Assistant Referee 1: Filippo Meli (ITA)
Assistant Referee 2: Matteo Passeri (ITA)
Fourth Official: Daniele Orsato (ITA)
VAR: Massimiliano Irrati (ITA)
AVAR: Marco Guida (ITA)
Referee Observer: Peter Fröjdfeldt (SWE)