Bolivar – Universidad Catolica
Referee: Carlos Vera (ECU, photo)
Assistant Referee 1: Christian Lescano (ECU)
Assistant Referee 2: Luis Alvarado (ECU)
Fourth Official: Johnny Cuellar (BOL)
Velez Sarsfield – Defensor Sporting
Referee: Sandro Ricci (BRA)
Assistant Referee 1: Altemir Hausmann (BRA)
Assistant Referee 2: Dibert Pedrosa (BRA)
Fourth Official: German Delfino (ARG)
Deportivo Quito – Chivas
Referee: Wilmar Roldan (COL)
Assistant Referee 1: Eduardo Diaz (COL)
Assistant Referee 2: Rafael Rivas (COL)
Fourth Official: Roddy Zambrano (ECU)
Junior – Union Espanola
Referee: Federico Beligoy (ARG)
Assistant Referee 1: Hernan Maidana (ARG)
Assistant Referee 2: Diego Bonfa (ARG)
Fourth Official: Ramiro Suarez (COL)
18 April 2012
Arsenal – Fluminense
Referee: Roberto Silvera (URU)
Assistant Referee 1: Mauricio Espinosa (URU)
Assistant Referee 2: Nicolas Taran (URU)
Fourth Official: Nestor Pitana (ARG)
Boca Juniors – Zamora
Referee: Raul Orosco (BOL)
Assistant Referee 1: Arol Valda (BOL)
Assistant Referee 2: Wilson Arellano (BOL)
Fourth Official: Sergio Pezzotta (ARG)
Corinthians – Deportivo Tachira
Referee: Patricio Polic (CHI)
Assistant Referee 1: Sergio Roman (CHI)
Assistant Referee 2: Marcelo Barraza (CHI)
Fourth Official: Paulo Oliveira (BRA)
Cruz Azul – Nacional
Referee: Victor Carrillo (PER)
Assistant Referee 1: Raul Lopez (PER)
Assistant Referee 2: Braulio Cornejo (PER)
Fourth Official: Mauricio Morales (MEX)
19 April 2012
Juan Aurich – Internacional
Referee: Marlon Escalante (VEN)
Assistant Referee 1: Jorge Urrego (VEN)
Assistant Referee 2: Elbis Gomez (VEN)
Fourth Official: Miguel Santivanez (PER)
Santos – The Strongest
Referee: Julio Quintana (PAR)
Assistant Referee 1: Rodney Aquino (PAR)
Assistant Referee 2: Hugo Martinez (PAR)
Fourth Official: Wilson Seneme (BRA)
Universidad de Chile – Atletico Nacional
Referee: Victor Rivera (PER)
Assistant Referee 1: Jonny Bossio (PER)
Assistant Referee 2: Cesar Escano (PER)
Fourth Official: Eduardo Gamboa (PER)
Penarol – Godoy Cruz
Referee: Ricardo Marques (BRA)
Assistant Referee 1: Rodrigo Joia (BRA)
Assistant Referee 2: Fabricio Vilarinho (BRA)
Fourth Official: Liber Prudente (URU)
