Referee: Saul Laverni (ARG, photo)
Assistant Referee 1: Hernan Maidana (ARG)
Assistant Referee 2: Ernesto Uziga (ARG)
Fourth Official: Henry Gambetta (PER)
Lanus – Olimpia
Referee: Victor Rivera (PER)Assistant Referee 1: Hernan Maidana (ARG)
Assistant Referee 2: Ernesto Uziga (ARG)
Fourth Official: Henry Gambetta (PER)
Lanus – Olimpia
Assistant Referee 1: Jonny Bossio (PER)
Assistant Referee 2: Cesar Escano (PER)
Fourth Official: Pablo Lunati (ARG)
Deportivo Tachira – Cruz Azul
Referee: Dario Ubriaco (URU)
Assistant Referee 1: Mauricio Espinosa (URU)
Assistant Referee 2: Marcelo Costa (URU)
Fourth Official: Marlon Escalante (VEN)
4 April 2012
Godoy Cruz – Universidad de Chile
Referee: Carlos Amarilla (PAR)
Assistant Referee 1: Rodney Aquino (PAR)
Assistant Referee 2: Cesar Franco (PAR)
Fourth Official: German Delfino (ARG)
Internacional – Santos
Referee: Sandro Ricci (BRA)
Assistant Referee 1: Roberto Braatz (BRA)
Assistant Referee 2: Fabricio Silva (BRA)
Fourth Official: Pericles Cortes (BRA)
Emelec – Flamengo
Referee: Martin Vazquez (URU)
Assistant Referee 1: Carlos Pastorino (URU)
Assistant Referee 2: Carlos Changala (URU)
Fourth Official: Daniel Salazar (ECU)
Junior – Universidad Catolica
Referee: Paulo Oliveira (BRA)
Assistant Referee 1: Altemir Hausmann (BRA)
Assistant Referee 2: Dibert Pedrosa (BRA)
Fourth Official: Juan Restrepo (COL)
5 April 2012
Libertad – Nacional
Referee: Omar Ponce (ECU)
Assistant Referee 1: Juan Cedeno (ECU)
Assistant Referee 2: Carlos Herrera (ECU)
Fourth Official: Julio Quintana (PAR)
Juan Aurich – The Strongest
Referee: Alfredo Intriago (ECU)
Assistant Referee 1: Luis Alvarado (ECU)
Assistant Referee 2: Byron Romero (ECU)
Fourth Official: Manuel Garay (PER)