| Yellow | VS Club | Date | |
|---|---|---|---|
| 7 | Real Salt Lake | 05-07-2018 | Match details |
| 5 | Los Angeles Galaxy | 07-10-2018 | Match details |
| 3 | Los Angeles FC | 29-10-2018 | Match details |
| 3 | FC Dallas | 21-10-2018 | Match details |
| 3 | Seattle Sounders | 01-09-2018 | Match details |
Sporting Kansas City
| Yellow | VS Club | Date | |
|---|---|---|---|
| 7 | Real Salt Lake | 05-07-2018 | Match details |
| 5 | Los Angeles Galaxy | 07-10-2018 | Match details |
| 3 | Los Angeles FC | 29-10-2018 | Match details |
| 3 | FC Dallas | 21-10-2018 | Match details |
| 3 | Seattle Sounders | 01-09-2018 | Match details |