| 1. Round | 13/08/2023 | Newcastle United U21 | - | Southampton FC U21 | 5:3 |  |
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| 2. Round | 18/08/2023 | Southampton FC U21 | - | Aston Villa U21 | 4:2 | ||||
| 3. Round | 25/08/2023 | Southampton FC U21 | - | Liverpool FC U21 | 0:3 | ||||
| 4. Round | 01/09/2023 | Fulham FC U21 | - | Southampton FC U21 | 5:1 | ||||
| 5. Round | 22/09/2023 | West Ham United U21 | - | Southampton FC U21 | 3:3 | ||||
| 7. Round | 30/10/2023 | Wolverhampton Wanderers U21 | - | Southampton FC U21 | 2:1 | ||||
| 8. Round | 03/11/2023 | Southampton FC U21 | - | Sunderland AFC U21 | 1:2 | |
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| 9. Round | 04/12/2023 | Everton FC U21 | - | Southampton FC U21 | 5:0 | ||||
| 10. Round | 15/12/2023 | Southampton FC U21 | - | Derby County U21 | 2:1 | ||||
| 11. Round | 12/01/2024 | Southampton FC U21 | - | Tottenham Hotspur U21 | 2:3 | ||||
| 12. Round | 29/01/2024 | Leicester City U21 | - | Southampton FC U21 | 1:2 |
Germany
Nigeria