25 April 2017
Tucuman – J. Wilstermann
Referee: Juan Soto (VEN, photo)
Assistant Referee 1: Luis Sanchez (VEN)
Assistant Referee 2: Tulio Moreno (VEN)
Fourth Official: Jose Hoyo (VEN)
Referee Assessor: Hugo Munoz (CHI)
Deportivo Iquique – Zamora
Referee: Gery Vargas (BOL)
Assistant Referee 1: Jorge Baldiviezo (BOL)
Assistant Referee 2: Roger Orellana (BOL)
Fourth Official: Ivo Mendez (BOL)
Referee Assessor: Jose Buitrago (COL)
San Lorenzo – Universidad Catolica
Referee: Daniel Fedorczuk (URU)
Assistant Referee 1: Carlos Pastorino (URU)
Assistant Referee 2: Miguel Nievas (URU)
Fourth Official: Esteban Ostojich (URU)
Referee Assessor: Ricardo Casas (ARG)
26 April 2017
Atletico Mineiro – Libertad
Referee: Wilson Lamouroux (COL)
Assistant Referee 1: Eduardo Diaz (COL)
Assistant Referee 2: Alexander Leon (COL)
Fourth Official: Luis Sanchez (COL)
Referee Assessor: Roberto Perassi (BRA)
Melgar – Medellin
Referee: Anderson Daronco (BRA)
Assistant Referee 1: Guilherme Dias (BRA)
Assistant Referee 2: Danilo Manis (BRA)
Fourth Official: Rodolpho Toski (BRA)
Referee Assessor: Jorge Jaimes (PER)
Paranaense – Flamengo
Referee: Jose Argote (VEN)
Assistant Referee 1: Luis Murillo (VEN)
Assistant Referee 2: Jorge Urrego (VEN)
Fourth Official: Adrian Cabello (VEN)
Referee Assessor: Ednilson Corona (BRA)
Penarol – Palmeiras
Referee: Enrique Caceres (PAR)
Assistant Referee 1: Eduardo Cardozo (PAR)
Assistant Referee 2: Juan Zorrilla (PAR)
Fourth Official: Jose Mendez (PAR)
Referee Assessor: Hector Baldassi (ARG)
27 April 2017
Zulia – Lanus
Referee: Wilmar Roldan (COL)
Assistant Referee 1: Humberto Clavijo (COL)
Assistant Referee 2: Dionisio Ruiz (COL)
Fourth Official: Gustavo Murillo (COL)
Referee Assessor: Roman Hermoso (BRA)
Emelec – River Plate
Referee: Roberto Tobar (CHI)
Assistant Referee 1: Marcelo Barazza (CHI)
Assistant Referee 2: Edson Cisterna (CHI)
Fourth Official: Eduard Gamboa (CHI)
Referee Assessor: Jose Lara (ECU)
Nacional – Chapecoense
Referee: Eber Aquino (PAR)
Assistant Referee 1: Rodney Aquino (PAR)
Assistant Referee 2: Dario Gaona (PAR)
Fourth Official: Arnaldo Samaniego (PAR)
Referee Assessor: Ricardo Casas (ARG)
Gremio – Guarani
Referee: Patricio Loustau (ARG)
Assistant Referee 1: Hernan Maidana (ARG)
Assistant Referee 2: Gustavo Rossi (ARG)
Fourth Official: Fernando Espinoza (ARG)
Referee Assessor: Roberto Silvera (URU)
Sport Boys – Godoy Cruz
Referee: Victor Carrillo (PER)
Assistant Referee 1: Stephen Atoche (PER)
Assistant Referee 2: Michael Orue (PER)
Fourth Official: Luis Garay (PER)
Referee Assessor: Alvaro Sacarelo (URU)