| Yellow | VS Club | Date | |
|---|---|---|---|
| 5 | Los Angeles FC | 30-09-2018 | Match details |
| 3 | Columbus Crew | 24-08-2018 | Match details |
| 3 | New York City | 01-07-2018 | Match details |
| 3 | Seattle Sounders | 24-06-2018 | Match details |
| 3 | Colorado Rapids | 14-06-2018 | Match details |
Chicago Fire
| Yellow | VS Club | Date | |
|---|---|---|---|
| 5 | Los Angeles FC | 30-09-2018 | Match details |
| 3 | Columbus Crew | 24-08-2018 | Match details |
| 3 | New York City | 01-07-2018 | Match details |
| 3 | Seattle Sounders | 24-06-2018 | Match details |
| 3 | Colorado Rapids | 14-06-2018 | Match details |