| Yellow | VS Club | Date | |
|---|---|---|---|
| 6 | Portsmouth | 12-09-2020 | Match details |
| 5 | Lincoln City | 27-04-2021 | Match details |
| 5 | Hull City | 20-03-2021 | Match details |
| 4 | Accrington Stanley | 02-12-2020 | Match details |
| 3 | Wigan Athletic | 20-04-2021 | Match details |
| 3 | Milton Keynes Dons | 23-02-2021 | Match details |
