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| 1st(1st leg) | FC Groningen | - | AZ Alkmaar | 3:1 (0:0) | ||
| 2nd (2nd leg) | AZ Alkmaar | - | FC Groningen | 2:1 (1:0) | ||
| 1st(1st leg): 20/04/2006 19:00 | 2nd (2nd leg): 23/04/2006 13:30 | Winner: FC Groningen | ||||
| 1st(1st leg) | AFC Ajax | - | Feyenoord | 3:0 (1:0) | ||
| 2nd (2nd leg) | Feyenoord | - | AFC Ajax | 2:4 (0:2) | ||
| 1st(1st leg): 20/04/2006 19:15 | 2nd (2nd leg): 23/04/2006 11:30 | Winner: AFC Ajax | ||||
