Universidad – Newells Old Boys
Referee: Wilmar Roldan (COL)
Assistant Referee 1: Humberto Clavijo (COL)
Assistant Referee 2: Eduardo Diaz (COL)
Fourth Official: Carlos Ulloa (CHI)
Referee Observer: Pablo Pozo (CHI)
Velez Sarsfield – Penarol
Referee: Leandro Vuaden (BRA)
Assistant Referee 1: Emerson Carvalho (BRA)
Assistant Referee 2: Alessandro Rocha (BRA)
Fourth Official: Diego Ceballos (ARG)
Referee Observer: Miguel Scime (ARG)
Caracas – Gremio
Referee: Oscar Maldonado (BOL)
Assistant Referee 1: Efrain Castro (BOL)
Assistant Referee 2: Arol Valda (BOL)
Fourth Official: Mayker Gomez (VEN)
Referee Observer: Bernardo Corujo (VEN)
Sporting Cristal – Libertad
Referee: Roberto Silvera (URU)
Assistant Referee 1: Miguel Nievas (URU)
Assistant Referee 2: Marcelo Costa (URU)
Fourth Official: Diego Haro (PER)
Referee Observer: Alberto Tejada (PER)
13 March 2013
Barcelona – Toluca
Referee: Enrique Caceres (PAR)
Assistant Referee 1: Rodney Aquino (PAR)
Assistant Referee 2: Dario Gaona (PAR)
Fourth Official: Carlos Orbe (ECU)
Referee Observer: Rogger Zambrano (ECU)
Deportivo Lara – Olimpia
Referee: Roberto Garcia (MEX)
Assistant Referee 1: Jose Camargo (MEX)
Assistant Referee 2: Alberto Morin (MEX)
Fourth Official: Jose Hoyo (VEN)
Referee Observer: Adrian Gomez (VEN)
Corinthians – Tijuana
Referee: Enrique Osses (CHI)
Assistant Referee 1: Francisco Mondria (CHI)
Assistant Referee 2: Carlos Astroza (CHI)
Fourth Official: Francisco Nascimento (BRA)
Referee Observer: Salvio Fagundes (BRA)
The Strongest – Atletico Mineiro
Referee: Julio Quintana (PAR)
Assistant Referee 1: Carlos Caceres (PAR)
Assistant Referee 2: Eduardo Cardozo (PAR)
Fourth Official: Johnny Cuellar (BOL)
Referee Observer: Marcelo Ortube (BOL)
14 March 2013
Nacional – Boca Juniors
Referee: Paulo Oliveira (BRA)
Assistant Referee 1: Marcelo Van Gasse (BRA)
Assistant Referee 2: Fabricio Vilarinho (BRA)
Fourth Official: Andres Cunha (URU)
Referee Observer: Carlos Velasquez (URU)
San Jose – Millonarios
Referee: Patricio Loustau (ARG)
Assistant Referee 1: Ernesto Uziga (ARG)
Assistant Referee 2: Ezequiel Brailovsky (ARG)
Fourth Official: Jose Jordan (BOL)
Referee Observer: Oscar Ortube (BOL)
Arsenal – Sao Paulo
Referee: Omar Ponce (ECU)
Assistant Referee 1: Luis Alvarado (ECU)
Assistant Referee 2: Byron Romero (ECU)
Fourth Official: Mauro Vigliano (ARG)
Referee Observer: Abel Gnecco (ARG)
