CONMEBOL Libertadores 2019 – Semi-finals (Second Leg)

22-23 October 2019

Boca Juniors – River Plate
Referee: Wilton Sampaio (BRA, photo)
Assistant Referee 1: Fabricio Vilarinho (BRA)
Assistant Referee 2: Rodrigo Correa (BRA)
Fourth Official: Víctor Carrillo (PER)
VAR: Mauro Vigliano (ARG)
AVAR 1: Fernando Rapallini (ARG)
AVAR 2: Hernan Maidana (ARG)
VAR Observer: Carlos Astroza (CHI)
Referee Assessor: Enrique Caceres (PAR)

Flamengo – Gremio
Referee: Patricio Loustau (ARG)
Assistant Referee 1: Diego Bonfa (ARG)
Assistant Referee 2: Gabriel Chase (ARG)
Fourth Official: Leodan Gonzalez (URU)
VAR: Raphael Claus (BRA)
AVAR 1: Braulio Machado (BRA)
AVAR 2: Alexander Guzman (COL)
VAR Observer: Dario Ubriaco (URU)
Referee Assessor: Alicio Pena (BRA)