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| 1st(1st leg) | Real Sociedad | - | Real Madrid | 1:0 | ||
| 2nd (2nd leg) | Real Madrid | - | Real Sociedad | 0:4 | ||
| 1st(1st leg): 11/02/1988 | 2nd (2nd leg): 18/02/1988 | Winner: Real Sociedad | ||||
| 1st(1st leg) | CA Osasuna | - | FC Barcelona | 0:0 | ||
| 2nd (2nd leg) | FC Barcelona | - | CA Osasuna | 3:0 | ||
| 1st(1st leg): 11/02/1988 | 2nd (2nd leg): 17/02/1988 | Winner: FC Barcelona | ||||
