| 2. Round | 06/12/2023 | Unionistas CF | - | Sporting Gijón | 2:0 | ||||
| 3. Round | 07/01/2024 | Unionistas CF | - | Villarreal CF | 7:6 pso |  |
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| Round of 16 | 18/01/2024 | Unionistas CF | - | FC Barcelona | 1:3 | |
| 2. Round | 06/12/2023 | Unionistas CF | - | Sporting Gijón | 2:0 | ||||
| 3. Round | 07/01/2024 | Unionistas CF | - | Villarreal CF | 7:6 pso | |
|||
| Round of 16 | 18/01/2024 | Unionistas CF | - | FC Barcelona | 1:3 | |
| Ekaitz Jiménez Astigarraga | |
| Born: | 15.03.1996 |
| Place of birth: |
San Sebastián, 
Spain |
| Nationality: |
Spain
|
| Height: | 168 cm |
| Weight: | 61 kg |
| Position(s): | Left Back Left Midfielder |
| Foot: | left |