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| 1st(1st leg) | FC Porto | - | Sporting CP | 1:0 (0:0) | ||
| 2nd (2nd leg) | Sporting CP | - | FC Porto | 5:4 (0:0, 1:0, 1:0) pso | ||
| 1st(1st leg): 07/02/2018 20:15 | 2nd (2nd leg): 18/04/2018 20:30 | Winner: Sporting CP | ||||
| 1st(1st leg) | CD Aves | - | Caldas SC | 1:0 (1:0) | ||
| 2nd (2nd leg) | Caldas SC | - | CD Aves | 1:2 (0:0, 1:0) aet | ||
| 1st(1st leg): 28/02/2018 20:15 | 2nd (2nd leg): 18/04/2018 18:30 | Winner: CD Aves | ||||
