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| H | River Plate | - | Lanús | 1:0 (0:0) | ||
| R | Lanús | - | River Plate | 4:2 (1:2) | ||
| H: 25.10.2017 00:15 | R: 01.11.2017 01:15 | Sieger: Lanús | ||||
| H | Barcelona | - | Grêmio Porto Alegre | 0:3 (0:2) | ||
| R | Grêmio Porto Alegre | - | Barcelona | 0:1 (0:1) | ||
| H: 26.10.2017 01:45 | R: 02.11.2017 00:45 | Sieger: Grêmio Porto Alegre | ||||
