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| 1st(1st leg) | KV Kortrijk | - | KRC Genk | 3:2 (2:2) | ||
| 2nd (2nd leg) | KRC Genk | - | KV Kortrijk | 1:0 (1:0) | ||
| 1st(1st leg): 30/01/2018 19:45 | 2nd (2nd leg): 06/02/2018 19:45 | Winner: KRC Genk | ||||
| 1st(1st leg) | Standard Liège | - | Club Brugge KV | 4:1 (2:0) | ||
| 2nd (2nd leg) | Club Brugge KV | - | Standard Liège | 3:2 (1:1) | ||
| 1st(1st leg): 31/01/2018 19:45 | 2nd (2nd leg): 08/02/2018 19:45 | Winner: Standard Liège | ||||
