| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 5 | Real Salt Lake | 03-07-2008 | League Section | Match details |
| 4 | Chivas USA | 03-05-2008 | League Section | Match details |
| 3 | DC United | 23-07-2008 | League Section | Match details |
| 3 | New York Red Bulls | 31-05-2008 | League Section | Match details |
