13 March 2012Internacional – The Strongest
Referee: Antonio Arias (PAR, photo)
Assistant Referee 1: Nicolas Yegros (PAR)
Assistant Referee 2: Dario Gaona (PAR)
Fourth Official: Leandro Vuaden (BRA)
Lanus – Emelec
Referee: Victor Carrillo (PER)
Assistant Referee 1: Jonny Bossio (PER)
Assistant Referee 2: Jorge Yupanqui (PER)
Fourth Official: Diego Abal (ARG)
Nacional – Deportivo Tachira
Referee: Alfredo Intriago (ECU)
Assistant Referee 1: Christian Lescano (ECU)
Assistant Referee 2: Byron Romero (ECU)
Fourth Official: Julio Quintana (PAR)
Alianza Lima – Nacional Montevideo
Referee: Wilmar Roldan (COL)
Assistant Referee 1: Humberto Clavijo (COL)
Assistant Referee 2: Eduardo Diaz (COL)
Fourth Official: Manuel Garay (PER)
Chivas Guadalajara – Defensor Sporting
Referee: Marlon Escalante (VEN)
Assistant Referee 1: Rafael Yanez (VEN)
Assistant Referee 2: Jorge Urrego (VEN)
Fourth Official: Fabricio Morales (MEX)
14 March 2012
Arsenal – Boca Juniors
Referee: Pablo Lunati (ARG)
Assistant Referee 1: Hernan Maidana (ARG)
Assistant Referee 2: Gustavo Rossi (ARG)
Fourth Official: German Delfino (ARG)
Fluminense – Zamora
Referee: Patricio Polic (CHI)
Assistant Referee 1: Julio Diaz (CHI)
Assistant Referee 2: Sergio Roman (CHI)
Fourth Official: Marcelo Henrique (BRA)
Cruz Azul – Corinthians
Referee: Carlos Vera (ECU)
Assistant Referee 1: Juan Cedeno (ECU)
Assistant Referee 2: Douglas Bustamante (ECU)
Fourth Official: Alfredo Penaloza (MEX)
Libertad – Vasco da Gama
Referee: Enrique Osses (CHI)
Assistant Referee 1: Carlos Astroza (CHI)
Assistant Referee 2: Juan Maturana (CHI)
Fourth Official: Enrique Caceres (PAR)
15 March 2012
Juan Aurich – Santos
Referee: Roberto Silvera (URU)
Assistant Referee 1: Mauricio Espinosa (URU)
Assistant Referee 2: Gabriel Popovits (URU)
Fourth Official: Henry Gambetta (PER)
Flamengo – Olimpia
Referee: Jose Buitrago (COL)
Assistant Referee 1: Wilmar Navarro (COL)
Assistant Referee 2: Alexader Guzman (COL)
Fourth Official: Pericles Cortez (BRA)
