| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | Chicago Fire | 10-09-2011 | League Section | Match details |
| 4 | Toronto FC | 09-04-2011 | League Section | Match details |
| 3 | Seattle Sounders | 15-10-2011 | League Section | Match details |
| 3 | New England Revolution | 08-10-2011 | League Section | Match details |
| 3 | Colorado Rapids | 24-09-2011 | League Section | Match details |
| 3 | Real Salt Lake | 23-07-2011 | League Section | Match details |
