| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | Chivas USA | 12-04-2008 | League Section | Match details |
| 3 | Colorado Rapids | 27-07-2008 | League Section | Match details |
| 3 | Chicago Fire | 05-07-2008 | League Section | Match details |
| 3 | New England Revolution | 24-05-2008 | League Section | Match details |
