Copa Sudamericana – Round of 16 (First Leg, II)

24 September 2013
Coritiba – Itagui
Referee: Oscar Maldonado (BOL, photo)
Assistant Referee 1: Efrain Castro (BOL)
Assistant Referee 2: Wilson Arellano (BOL)
Fourth Official: Marcelo Henrique (BRA)
Referee Observer: Roberto Braatz (BRA)

25 September 2013
Ponte Preta – Deportivo Pasto
Referee: Julio Bascunan (CHI)
Assistant Referee 1: Francisco Mondria (CHI)
Assistant Referee 2: Juan Maturana (CHI)
Fourth Official: Wilson Seneme (BRA)
Referee Observer: Nilson Moncao (BRA)

Libertad – Sport Recife
Referee: Saul Laverni (ARG)
Assistant Referee 1: Ivan Nunez (ARG)
Assistant Referee 2: Ezequiel Brailovsky (ARG)
Fourth Official: Ulises Mereles (PAR)
Referee Observer: Manuel Bernal (PAR)

26 September 2013
Sao Paulo – Universidad Catolica
Referee: Dario Ubriaco (URU)
Assistant Referee 1: Carlos Pastorino (URU)
Assistant Referee 2: Carlos Changala (URU)
Fourth Official: Wilton Sampaio (BRA)
Referee Observer: Ednilson Corona (BRA)

Atletico Nacional – Bahia
Referee: Roddy Zambrano (ECU)
Assistant Referee 1: Luis Alvarado (ECU)
Assistant Referee 2: Luis Vera (ECU)
Fourth Official: Adrian Velez (COL)
Referee Observer: Otalvaro Polanco (COL)