7-9 August 2018
Estudiantes – Gremio
Referee: Andres Cunha (URU, photo)
Assistant Referee 1: Nicolas Taran (URU)
Assistant Referee 2: Mauricio Espinosa (URU)
Fourth Official: Esteban Ostojich (URU)
Referee Assessor: Ubaldo Aquino (PAR)
Boca Juniors – Libertad
Referee: Wilton Sampaio (BRA)
Assistant Referee 1: Emerson de Carvalho (BRA)
Assistant Referee 2: Bruno Boschilia (BRA)
Fourth Official: Rodolpho Toski (BRA)
Referee Assessor: Jose Buitrago (COL)
Colo Colo – Corinthians
Referee: Wilmar Roldan (COL)
Assistant Referee 1: Alexander Guzman (COL)
Assistant Referee 2: Alexander Leon (COL)
Fourth Official: Nicolas Gallo (COL)
Referee Assessor: Rodolfo Otero (ARG)
Flamengo – Cruzeiro
Referee: Nestor Pitana (ARG)
Assistant Referee 1: Hernan Maidana (ARG)
Assistant Referee 2: Gustavo Rossi (ARG)
Fourth Official: Fernando Espinoza (ARG)
Referee Assessor: Francisco Mondria (CHI)
Racing – River Plate
Referee: Anderson Daronco (BRA)
Assistant Referee 1: Marcelo Van Gasse (BRA)
Assistant Referee 2: Rodrigo Correa (BRA)
Fourth Official: Luiz Oliveira (BRA)
Referee Assessor: Carlos Torres (PAR)
Cerro Porteño – Palmeiras
Referee: Fernando Rapallini (ARG)
Assistant Referee 1: Juan Belatti (ARG)
Assistant Referee 2: Gabriel Chade (ARG)
Fourth Official: German Delfino (ARG)
Referee Assessor: Martin Vazquez (URU)
Atlético Tucuman – Atlético Nacional
Referee: Eber Aquino (PAR)
Assistant Referee 1: Eduardo Cardozo (PAR)
Assistant Referee 2: Milciades Saldívar (PAR)
Fourth Official: Arnaldo Samaniego (PAR)
Referee Assessor: Roberto Perassi (BRA)
Independiente – Santos
Referee: Diego Haro (PER)
Assistant Referee 1: Jonny Bossio (PER)
Assistant Referee 2: Victor Raez (PER)
Fourth Official: Miguel Santivañez (PER)
Referee Assessor: Dario Ubriaco (URU)