5-7 February 2019Danubio – Atletico Mineiro
Referee: German Delfino (ARG, photo)
Assistant Referee 1: Juan Belatti (ARG)
Assistant Referee 2: Maximiliano Yesso (ARG)
Fourth Official: Silvio Trucco (ARG)
Referee Assessor: Amelio Andino (PAR)
Melgar – Universidad de Chile
Referee: Anderson Daronco (BRA)
Assistant Referee 1: Fabricio Vilarinho (BRA)
Assistant Referee 2: Guilherme Camilo (BRA)
Fourth Official: Rodolpho Toski (BRA)
Referee Assessor: Carlos Herrera (ECU)
The Strongest – Libertad
Referee: Roddy Zambrano (ECU)
Assistant Referee 1: Christian Lescano (ECU)
Assistant Referee 2: Byron Romero (ECU)
Fourth Official: Franklin Congo (ECU)
Referee Assessor: Cesar Escano (PER)
Defensor Sporting – Barcelona
Referee: Julio Bascunan (CHI)
Assistant Referee 1: Christian Schiemann (CHI)
Assistant Referee 2: Raul Orellana (CHI)
Fourth Official: Cesar Deischler (CHI)
Referee Assessor: Pablo Silva (ARG)
Delfin – Caracas
Referee: Nicolas Gallo (COL)
Assistant Referee 1: Wilmar Navarro (COL)
Assistant Referee 2: Miguel Roldan (COL)
Fourth Official: John Ospina (COL)
Referee Assessor: Ana Oliveira (BRA)
Talleres – Sao Paulo
Referee: Wilmar Roldan (COL)
Assistant Referee 1: Alexander Guzman (COL)
Assistant Referee 2: John Leon (COL)
Fourth Official: Carlos Herrera (COL)
Referee Assessor: Ubaldo Aquino (PAR)
Palestino – Independiente Medellin
Referee: Victor Carrillo (PER)
Assistant Referee 1: Coty Carrera (PER)
Assistant Referee 2: Raul Lopez (PER)
Fourth Official: Luis Garay (PER)
Referee Assessor: Sergio Cristiano (BRA)
Deportivo La Guaira – Atletico Nacional
Referee: Facundo Tello (ARG)
Assistant Referee 1: Ezequiel Brailovsky (ARG)
Assistant Referee 2: Pablo Gonzalez (ARG)
Fourth Official: Fernando Espinoza (ARG)
Referee Assessor: Candelario Andarcia (VEN)