Copa Libertadores – Semi-finals (First Leg)

2 July 2013
Olimpia – Santa Fe
Referee: Heber Lopes (BRA, photo)
Assistant Referee 1: Marcio Santiago (BRA)
Assistant Referee 2: Fabricio Vilarinho (BRA)
Fourth Official: Wilton Sampaio (BRA)
Referee Observer: Ubaldo Aquino (PAR)

3 July 2013
Newells Old Boys – Atletico Mineiro
Referee: Enrique Osses (CHI)
Assistant Referee 1: Carlos Astroza (CHI)
Assistant Referee 2: Sergio Roman (CHI)
Fourth Official: Patricio Polic (CHI)
Referee Observer: Abel Gnecco (ARG)