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| H | San Lorenzo | - | Lanús | 2:0 (1:0) | ||
| R | Lanús | - | San Lorenzo | 4:3 (2:0, 2:0) i.E. | ||
| H: 14.09.2017 00:15 | R: 22.09.2017 02:45 | Sieger: Lanús | ||||
| H | Barcelona | - | Santos FC | 1:1 (0:0) | ||
| R | Santos FC | - | Barcelona | 0:1 (0:0) | ||
| H: 14.09.2017 02:45 | R: 21.09.2017 02:45 | Sieger: Barcelona | ||||
| H | Botafogo - RJ | - | Grêmio Porto Alegre | 0:0 (0:0) | ||
| R | Grêmio Porto Alegre | - | Botafogo - RJ | 1:0 (0:0) | ||
| H: 14.09.2017 02:45 | R: 21.09.2017 02:45 | Sieger: Grêmio Porto Alegre | ||||
| H | Jorge Wilstermann | - | River Plate | 3:0 (1:0) | ||
| R | River Plate | - | Jorge Wilstermann | 8:0 (4:0) | ||
| H: 15.09.2017 02:45 | R: 22.09.2017 00:15 | Sieger: River Plate | ||||
