| Yellow | VS Club | Date | |
|---|---|---|---|
| 4 | Los Angeles FC | 24-06-2018 | Match details |
| 3 | Portland Timbers | 20-09-2018 | Match details |
| 3 | New York Red Bulls | 29-07-2018 | Match details |
Columbus Crew
| Yellow | VS Club | Date | |
|---|---|---|---|
| 4 | Los Angeles FC | 24-06-2018 | Match details |
| 3 | Portland Timbers | 20-09-2018 | Match details |
| 3 | New York Red Bulls | 29-07-2018 | Match details |