1st(1st leg) San Lorenzo - CA Lanús 2:0 (1:0)
2nd (2nd leg) CA Lanús - San Lorenzo 4:3 (2:0, 2:0) pso
1st(1st leg): 13/09/2017 23:15 2nd (2nd leg): 22/09/2017 01:45 Winner: CA Lanús
1st(1st leg) Barcelona SC - Santos FC 1:1 (0:0)
2nd (2nd leg) Santos FC - Barcelona SC 0:1 (0:0)
1st(1st leg): 14/09/2017 01:45 2nd (2nd leg): 21/09/2017 01:45 Winner: Barcelona SC
1st(1st leg) Botafogo RJ - Grêmio Porto Alegre 0:0 (0:0)
2nd (2nd leg) Grêmio Porto Alegre - Botafogo RJ 1:0 (0:0)
1st(1st leg): 14/09/2017 01:45 2nd (2nd leg): 21/09/2017 01:45 Winner: Grêmio Porto Alegre
1st(1st leg) Jorge Wilstermann - River Plate 3:0 (1:0)
2nd (2nd leg) River Plate - Jorge Wilstermann 8:0 (4:0)
1st(1st leg): 15/09/2017 01:45 2nd (2nd leg): 21/09/2017 23:15 Winner: River Plate