Copa Libertadores – Group Stage (Matchday 1)

24 January 2012
Arsenal – Sport Huancayo
Referee: Paulo Oliveira (BRA, photo)
Assistant Referee 1: Roberto Braatz (BRA)
Assistant Referee 2: Emerson Carvalho (BRA)
Fourth Official: German Delfino (ARG)

Nacional – Libertad
Referee: Victor Rivera (PER)
Assistant Referee 1: Cesar Escano (PER)
Assistant Referee 2: Jorge Yupanqui (PER)
Fourth Official: Diego Lara (ECU)

25 January 2012
Union Espanola – Tigres
Referee: Alfredo Intriago (ECU)
Assistant Referee 1: Juan Cedeno (ECU)
Assistant Referee 2: Douglas Bustamante (ECU)
Fourth Official: Julio Bascunan (CHI)

Real Potosi – Flamengo
Referee: Liber Prudente (URU)
Assistant Referee 1: Carlos Pastorino (URU)
Assistant Referee 2: Carlos Changala (URU)
Fourth Official: Johnny Cuellar (BOL)

Internacional – Once Caldas
Referee: Martin Vazquez (URU)
Assistant Referee 1: Mauricio Espinosa (URU)
Assistant Referee 2: Miguel Nievas (URU)
Fourth Official: Leandro Vuaden (BRA)

26 January 2012
Penarol – Caracas
Referee: Federico Beligoy (ARG)
Assistant Referee 1: Hernan Maidana (ARG)
Assistant Referee 2: Gustavo Rossi (ARG)
Fourth Official: Daniel Fedorczuk (URU)