1-3 August 2023
Argentinos Juniors – Fluminense
Referee: Piero Maza (CHI, photo)
Assistant Referee 1: Jose Retamal (CHI)
Assistant Referee 2: Alejandro Molina (CHI)
Fourth Official: Felipe Gonzalez (CHI)
VAR: Rodrigo Carvajal (CHI)
AVAR: Alan Sandoval (CHI)
Referee Assessor: Christian Schiemann (CHI)
VAR Supervisor: Wilson Lamouroux (COL)
Bolivar – Athletico Paranaense
Referee: Guillermo Guerrero (ECU)
Assistant Referee 1: Byron Romero (ECU)
Assistant Referee 2: Christian Lescano (ECU)
Fourth Official: Juan Andrade (ECU)
VAR: Carlos Orbe (ECU)
AVAR: Andres Tola (ECU)
Referee Assessor: Ricardo Casas (ARG)
VAR Supervisor: Luis Vera (ECU)
River Plate – Internacional
Referee: Jesus Valenzuela (VEN)
Assistant Referee 1: Jorge Urrego (VEN)
Assistant Referee 2: Tulio Moreno (VEN)
Fourth Official: Angel Arteaga (VEN)
VAR: Juan Lara (CHI)
AVAR: Edson Cisternas (CHI)
Referee Assessor: Victor Carrillo (PER)
VAR Supervisor: Dario Ubriaco (URU)
Nacional – Boca Juniors
Referee: Raphael Claus (BRA)
Assistant Referee 1: Danilo Manis (BRA)
Assistant Referee 2: Bruno Boschilia (BRA)
Fourth Official: Ramon Abatti (BRA)
VAR: Wagner Reway (BRA)
AVAR: Igor Benevenuto (BRA)
Referee Assessor: Ednilson Corona (BRA)
VAR Supervisor: Emerson De Carvalho (BRA)
Deportivo Pereira – Independiente Del Valle
Referee: Yael Falcon (ARG)
Assistant Referee 1: Gabriel Chade (ARG)
Assistant Referee 2: Cristian Navarro (ARG)
Fourth Official: Andres Merlos (ARG)
VAR: Silvio Trucco (ARG)
AVAR: Pablo Dovalo (ARG)
Referee Assessor: Patricio Loustau (ARG)
VAR Supervisor: Marcio Santiago (BRA)
Atletico Mineiro – Palmeiras
Referee: Facundo Tello (ARG)
Assistant Referee 1: Diego Bonfa (ARG)
Assistant Referee 2: Maximiliano Del Yesso (ARG)
Fourth Official: Maximiliano Ramirez (ARG)
VAR: German Delfino (ARG)
AVAR: Ezequiel Brailovsky (ARG)
Referee Assessor: Jose Buitrago (COL)
VAR Supervisor: Wilson Avila (ECU)
Atletico Nacional – Racing Club
Referee: Braulio Machado (BRA)
Assistant Referee 1: Rodrigo Correa (BRA)
Assistant Referee 2: Bruno Pires (BRA)
Fourth Official: Paulo Zanovelli (BRA)
VAR: Rodolpho Toski (BRA)
AVAR: Fabricio Vilarinho (BRA)
Referee Assessor: Regildenia Moura (BRA)
VAR Supervisor: Giulliano Bozzano (BRA)
Flamengo – Olimpia
Referee: Dario Herrera (ARG)
Assistant Referee 1: Juan Belatti (ARG)
Assistant Referee 2: Facundo Rodriguez (ARG)
Fourth Official: Pablo Echavarria (ARG)
VAR: Mauro Vigliano (ARG)
AVAR: Hector Paleta (ARG)
Referee Assessor: Hector Baldassi (ARG)
VAR Supervisor: Gustavo Rossi (ARG)