| Yellow | VS Club | Date | |
|---|---|---|---|
| 4 | Portland Timbers | 16-08-2018 | Match details |
| 4 | Los Angeles FC | 27-05-2018 | Match details |
| 3 | New York Red Bulls | 27-08-2018 | Match details |
| 3 | Atlanta United | 21-07-2018 | Match details |
| 3 | Orlando City | 04-03-2018 | Match details |
DC United
| Yellow | VS Club | Date | |
|---|---|---|---|
| 4 | Portland Timbers | 16-08-2018 | Match details |
| 4 | Los Angeles FC | 27-05-2018 | Match details |
| 3 | New York Red Bulls | 27-08-2018 | Match details |
| 3 | Atlanta United | 21-07-2018 | Match details |
| 3 | Orlando City | 04-03-2018 | Match details |