| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | Toronto FC | 13-04-2011 | League Section | Match details |
| 4 | Philadelphia Union | 02-04-2011 | League Section | Match details |
| 4 | Real Salt Lake | 26-03-2011 | League Section | Match details |
| 3 | Sporting Kansas City | 05-09-2011 | League Section | Match details |
