 |
 |
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| U | CD Numancia | - | Real Zaragoza | 1:1 (1:1) | ||
| R | Real Zaragoza | - | CD Numancia | 1:2 (0:0) | ||
| U: 06.06.2018 20:30 | R: 09.06.2018 18:00 | Winnaars: CD Numancia | ||||
| U | Real Valladolid | - | Sporting Gijón | 3:1 (3:0) | ||
| R | Sporting Gijón | - | Real Valladolid | 1:2 (0:2) | ||
| U: 07.06.2018 20:30 | R: 10.06.2018 20:30 | Winnaars: Real Valladolid | ||||
