Cardiff City v Sutton United, 10 August 2021
| Score | 3-2 to Cardiff City |
| Competition | League Cup 1st round |
| Venue | Cardiff City Stadium |
| Attendance | 3,500 |
View Cardiff City v Sutton United head to head
Kick-off: 7.00pm
| Score | 3-2 to Cardiff City |
| Competition | League Cup 1st round |
| Venue | Cardiff City Stadium |
| Attendance | 3,500 |
View Cardiff City v Sutton United head to head