| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | FC Dallas | 12-10-2011 | League Section | Match details |
| 4 | Portland Timbers | 16-07-2011 | League Section | Match details |
| 4 | New England Revolution | 18-06-2011 | League Section | Match details |
| 4 | Philadelphia Union | 21-05-2011 | League Section | Match details |
| 4 | Vancouver Whitecaps | 07-05-2011 | League Section | Match details |
| 4 | FC Dallas | 19-03-2011 | League Section | Match details |
