31 October 2017Lanus – River Plate
Referee: Wilmar Roldan (COL, photo)
Assistant Referee 1: Alexander Guzman (COL)
Assistant Referee 2: Christian De la Cruz (COL)
Fourth Official: Victor Carrillo (PER)
VAR: Andres Cunha (URU)
AVAR: Gery Vargas (BOL)
VAR 2: Nicolas Taran (URU)
Referee Assessor: Alicio Pena (BRA)
Referees Committee: Jorge Larrionda (URU)
1 November 2017
Gremio – Barcelona
Referee: Roberto Tobar (CHI)
Assistant Referee 1: Carlos Astroza (CHI)
Assistant Referee 2: Christian Schiemann (CHI)
Fourth Official: Mario Diaz de Vivar (PAR)
VAR: Julio Bascunan (CHI)
AVAR: Jesus Valenzuela (VEN)
VAR 2: Milciades Saldivar (PAR)
Referee Assessor: Hector Baldassi (ARG)
Referees Committee: Wilson Seneme (BRA)