| 3. Round | 27/08/2021 | West Bromwich Albion U23 | - | Birmingham City U23 | 3:2 | ||||
| 4. Round | 10/09/2021 | Birmingham City U23 | - | Sunderland AFC U23 | 1:0 | ||||
| 5. Round | 20/09/2021 | Nottingham Forest U23 | - | Birmingham City U23 | 5:0 | ||||
| 8. Round | 16/10/2021 | Birmingham City U23 | - | Aston Villa U23 | 1:2 |  |
| Juan Carlos Familia-Castillo | |
| Born: | 13.01.2000 |
| Place of birth: |
Amsterdam, 
Netherlands |
| Nationality: |
Dom. Republic
Netherlands |
| Height: | 177 cm |
| Weight: | 77 kg |
| Position(s): | Left Back Left Midfielder |
| Foot: | left |
