| Yellow | VS Club | Date | |
|---|---|---|---|
| 4 | Sheffield Wednesday | 17-12-2011 | Match details |
| 4 | Preston North End | 22-10-2011 | Match details |
| 4 | Stevenage | 08-10-2011 | Match details |
| 3 | Scunthorpe United | 21-04-2012 | Match details |
| 3 | Carlisle United | 31-03-2012 | Match details |
| 3 | Charlton Athletic | 24-03-2012 | Match details |
| 3 | Colchester United | 17-03-2012 | Match details |
