2-4 April 2019San Lorenzo – Palmeiras
Referee: Julio Bascunan (CHI, photo)
Assistant Referee 1: Claudio Rios (CHI)
Assistant Referee 2: Jose Retamal (CHI)
Fourth Official: Eduardo Gamboa (CHI)
Referee Assessor: Dario Ubriaco (URU)
Cerro Porteno – Nacional
Referee: Nestor Pitana (ARG)
Assistant Referee 1: Hernan Maidana (ARG)
Assistant Referee 2: Julio Fernandez (ARG)
Fourth Official: Silvio Trucco (ARG)
Referee Assessor: Ana Perez (PER)
San Jose – LDU Quito
Referee: Arnaldo Samaniego (PAR)
Assistant Referee 1: Dario Gaona (PAR)
Assistant Referee 2: Roberto Cañete (PAR)
Fourth Official: Mario Diaz de Vivar (PAR)
Referee Assessor: Rodolfo Otero (ARG)
Melgar – Junior
Referee: Jesus Valenzuela (VEN)
Assistant Referee 1: Luis Murillo (VEN)
Assistant Referee 2: Franchescoly Chacon (VEN)
Fourth Official: Marlon Escalante (VEN)
Referee Assessor: Claudio Puga (CHI)
Palestino – Alianza Lima
Referee: Eber Aquino (PAR)
Assistant Referee 1: Eduardo Cardozo (PAR)
Assistant Referee 2: Milciades Saldivar (PAR)
Fourth Official: Ulises Mereles (PAR)
Referee Assessor: Jose Buitrago (COL)
Atletico Paranaense – Boca Juniors
Referee: Roberto Tobar (CHI)
Assistant Referee 1: Christian Schiemann (CHI)
Assistant Referee 2: Raul Orellana (CHI)
Fourth Official: Cesar Deischler (CHI)
Referee Assessor: Martin Vazquez (URU)
Universided Concepcion – Godoy Cruz
Referee: Braulio Machado (BRA)
Assistant Referee 1: Marcelo Van Gasse (BRA)
Assistant Referee 2: Rodrigo Correa (BRA)
Fourth Official: Wagner Magalhaes (BRA)
Referee Assessor: Mauricio Espinosa (URU)
Internacional – River Plate
Referee: Esteban Ostojich (URU)
Assistant Referee 1: Nicolas Taran (URU)
Assistant Referee 2: Richard Trinidad (URU)
Fourth Official: Christian Ferreyra (URU)
Referee Assessor: Manuel Bernal (PAR)
Atletico Mineiro – Zamora
Referee: Gery Vargas (BOL)
Assistant Referee 1: Jose Antelo (BOL)
Assistant Referee 2: Edwar Saavedra (BOL)
Fourth Official: Luis Yrusta (BOL)
Referee Assessor: Angel Sanchez (ARG)
Deportivo Lara – Huracan
Referee: Leodan Gonzalez (URU)
Assistant Referee 1: Miguel Nievas (URU)
Assistant Referee 2: Carlos Barreiro (URU)
Fourth Official: Andres Matonte (URU)
Referee Assessor: Miguel Buitrago (VEN)
Emelec – Cruzeiro
Referee: Victor Carrillo (PER)
Assistant Referee 1: Jonny Bossio (PER)
Assistant Referee 2: Victor Raez (PER)
Fourth Official: Joel Alarcon (PER)
Referee Assessor: Hebert Aguilera (BOL)
Flamengo – Penarol
Referee: Patricio Loustau (ARG)
Assistant Referee 1: Juan Belatti (ARG)
Assistant Referee 2: Diego Bonfa (ARG)
Fourth Official: Facundo Tello (ARG)
Referee Assessor: Joel Ruiz (PAR)
Deportes Tolima – Jorge Wilstermann
Referee: Alexis Herrera (VEN)
Assistant Referee 1: Jorge Urrego (VEN)
Assistant Referee 2: Tulio Moreno (VEN)
Fourth Official: Orlando Bracamonte (VEN)
Referee Assessor: Fredy Arellanos (PER)
Universidad Catolica – Gremio
Referee: Wilmar Roldan (COL)
Assistant Referee 1: John Leon (COL)
Assistant Referee 2: Dionisio Ruiz (COL)
Fourth Official: Gustavo Murillo (COL)
Referee Assessor: Juan Cardellino (URU)
Libertad – Rosario Central
Referee: Carlos Orbe (ECU)
Assistant Referee 1: Christian Lescano (ECU)
Assistant Referee 2: Juan Macias (ECU)
Fourth Official: Roberto Sanchez (ECU)
Referee Assessor: Carlos Pastorino (URU)
Sporting Cristal – Olimpia
Referee: Andres Rojas (COL)
Assistant Referee 1: Alexander Guzman (COL)
Assistant Referee 2: Wilmar Navarro (COL)
Fourth Official: Nicolas Gallo (COL)
Referee Assessor: Roberto Perassi (BRA)
