League One 2021-22 Discipline
Red cards
Yellow cards
| Team | Cards |
| Charlton | 107 |
| Wigan | 100 |
| Accrington | 96 |
| Gillingham | 91 |
| Burton Albion | 90 |
| Sunderland | 90 |
| Cheltenham | 89 |
| Ipswich | 88 |
| AFC Wimbledon | 86 |
| Crewe | 83 |
| Sheff Weds | 83 |
| Lincoln | 80 |
| Fleetwood | 77 |
| Wycombe | 77 |
| Cambridge | 76 |
| Oxford Utd | 76 |
| Portsmouth | 76 |
| Shrewsbury | 76 |
| Doncaster | 73 |
| Morecambe | 70 |
| Rotherham | 69 |
| Bolton | 68 |
| MK Dons | 65 |
| Plymouth | 63 |
