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| 1st(1st leg) | RCD Mallorca | - | Real Sociedad | 0:0 (0:0) | ||
| 2nd (2nd leg) | Real Sociedad | - | RCD Mallorca | 4:5 (0:0, 1:1, 1:1) pso | ||
| 1st(1st leg): 06/02/2024 20:00 | 2nd (2nd leg): 27/02/2024 20:30 | Winner: RCD Mallorca | ||||
| 1st(1st leg) | Atlético Madrid | - | Athletic Bilbao | 0:1 (0:1) | ||
| 2nd (2nd leg) | Athletic Bilbao | - | Atlético Madrid | 3:0 (2:0) | ||
| 1st(1st leg): 07/02/2024 20:30 | 2nd (2nd leg): 29/02/2024 20:30 | Winner: Athletic Bilbao | ||||
