| Yellow | VS Club | Date | |
|---|---|---|---|
| 6 | Chicago Fire | 22-05-2021 | Match details |
| 5 | Atlanta United | 28-10-2021 | Match details |
| 5 | DC United | 20-06-2021 | Match details |
| 4 | Atlanta United | 09-05-2021 | Match details |
| 3 | Toronto FC | 22-08-2021 | Match details |
| 3 | New York City | 15-08-2021 | Match details |
| 3 | Montreal Impact | 04-07-2021 | Match details |
