| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 5 | New England Revolution | 20-08-2011 | League Section | Match details |
| 4 | FC Dallas | 23-07-2011 | League Section | Match details |
| 4 | Portland Timbers | 19-06-2011 | League Section | Match details |
| 3 | FC Dallas | 17-09-2011 | League Section | Match details |
| 3 | Colorado Rapids | 20-07-2011 | League Section | Match details |
| 3 | Seattle Sounders | 23-06-2011 | League Section | Match details |
| 3 | Sporting Kansas City | 30-04-2011 | League Section | Match details |
