| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | Seattle Sounders | 18-06-2011 | League Section | Match details |
| 4 | San Jose Earthquakes | 09-04-2011 | League Section | Match details |
| 4 | Portland Timbers | 26-03-2011 | League Section | Match details |
| 3 | Chivas USA | 24-09-2011 | League Section | Match details |
| 3 | Houston Dynamo | 09-07-2011 | League Section | Match details |
