| Yellow | VS Club | Date | |
|---|---|---|---|
| 4 | Toronto FC | 26-10-2013 | Match details |
| 4 | Philadelphia Union | 19-10-2013 | Match details |
| 4 | New England Revolution | 12-10-2013 | Match details |
| 4 | Real Salt Lake | 11-05-2013 | Match details |
| 3 | Los Angeles Galaxy | 17-10-2013 | Match details |
| 3 | Houston Dynamo | 05-10-2013 | Match details |
