14 May 2013Palmeiras – Tijuana
Assistant Referee 1: Jorge Urrego (VEN)
Assistant Referee 2: Carlos Lopez (VEN)
Fourth Official: Jose Argote (VEN)
Referee Observer: Ednilson Corona (BRA)
15 May 2013
Velez Sarsfield – Newells Old Boys
Referee: Nestor Pitana (ARG)
Assistant Referee 1: Juan Belatti (ARG)
Assistant Referee 2: Gustavo Rossi (ARG)
Fourth Official: Mauro Vigliano (ARG)
Referee Observer: Abel Gnecco (ARG)
Corinthians – Boca Juniors
Referee: Carlos Amarilla (PAR)
Assistant Referee 1: Rodney Aquino (PAR)
Assistant Referee 2: Carlos Caceres (PAR)
Fourth Official: Julio Quintana (PAR)
Referee Observer: Aristeu Tavares (PAR)
16 May 2013
Olimpia – Tigre
Referee: Dario Ubriaco (URU)
Assistant Referee 1: Miguel Nievas (URU)
Assistant Referee 2: Nicolas Taran (URU)
Fourth Official: Fernando Falce (URU)
Referee Observer: Ubaldo Aquino (URU)
Santa Fe – Gremio
Referee: Roberto Silvera (URU)
Assistant Referee 1: Mauricio Espinosa (URU)
Assistant Referee 2: Marcelo Costa (URU)
Fourth Official: Daniel Fedorczuk (URU)
Referee Observer: Otalvaro Polanco (URU)