Copa Sudamericana – Quarter-finals (First Leg)

24-26 October 2017

Fluminense – Flamengo
Referee: Mario Diaz de Vivar (PAR, photo)
Assistant Referee 1: Milciades Saldivar (PAR)
Assistant Referee 2: Dario Gaona (PAR)
Fourth Official: Jose Mendez (PAR)
Referee Assessor: Ubaldo Aquino (PAR)

Libertad – Racing
Referee: Raphael Claus (BRA)
Assistant Referee 1: Danilo Manis (BRA)
Assistant Referee 2: Bruno Pires (BRA)
Fourth Official: Dewson Freitas (BRA)
Referee Assessor: Dario Ubriaco (URU)

Nacional – Independiente
Referee: Leodan Gonzalez (URU)
Assistant Referee 1: Carlos Pastorino (URU)
Assistant Referee 2: Richard Trinidad (URU)
Fourth Official: Esteban Ostojich (URU)
Referee Assessor: Francisco Mondria (CHI)

Sport Recife – Junior
Referee: Fernando Rapallini (ARG)
Assistant Referee 1: Gustavo Rossi (ARG)
Assistant Referee 2: Ezequiel Brailovsky (ARG)
Fourth Official: Silvio Trucco (ARG)
Referee Assessor: Victor Rivera (PER)