| 12. Round | 29/01/2024 | Leicester City U21 | - | Southampton FC U21 | 1:2 | ||||
| 14. Round | 16/02/2024 | Arsenal FC U21 | - | Southampton FC U21 | 4:2 | ||||
| 15. Round | 04/03/2024 | West Bromwich Albion U21 | - | Southampton FC U21 | 1:1 | ||||
| 16. Round | 08/03/2024 | Southampton FC U21 | - | Stoke City U21 | 5:1 |  |
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| 17. Round | 15/03/2024 | Southampton FC U21 | - | Crystal Palace U21 | 4:0 | |
Ireland