Copa Libertadores Semi-finals (First Leg)

22-23 July 2014

San Lorenzo – Bolivar
Referee: Jose Buitrago (COL, photo)
Assistant Referee 1: Wilmar Navarro (COL)
Assistant Referee 2: Alexandre Guzman (COL)
Fourth Official: Luis Sanchez (COL)
Referee Observer: Abel Gnecco (ARG)

Asunción Nacional – Defensor Sporting
Referee: Diego Ceballos (ARG)
Assistant Referee 1: Gustavo Rossi (ARG)
Assistant Referee 2: Ivan Nunez (ARG)
Fourth Official: Pablo Diaz (ARG)
Referee Observer: Carlos Alarcon (PAR)