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| 1st(1st leg) | Independiente | - | Grêmio Porto Alegre | 1:1 (1:1) | ||
| 2nd (2nd leg) | Grêmio Porto Alegre | - | Independiente | 5:4 (0:0, 0:0, 0:0) pso | ||
| 1st(1st leg): 15/02/2018 00:00 | 2nd (2nd leg): 22/02/2018 00:45 | Winner: Grêmio Porto Alegre | ||||
|
|
| 1st(1st leg) | Independiente | - | Grêmio Porto Alegre | 1:1 (1:1) | ||
| 2nd (2nd leg) | Grêmio Porto Alegre | - | Independiente | 5:4 (0:0, 0:0, 0:0) pso | ||
| 1st(1st leg): 15/02/2018 00:00 | 2nd (2nd leg): 22/02/2018 00:45 | Winner: Grêmio Porto Alegre | ||||
