| Yellow | VS Club | Date | |
|---|---|---|---|
| 5 | San Jose Earthquakes | 06-05-2018 | Match details |
| 3 | Real Salt Lake | 07-10-2018 | Match details |
| 3 | Houston Dynamo | 16-09-2018 | Match details |
| 3 | New England Revolution | 02-09-2018 | Match details |
Portland Timbers
| Yellow | VS Club | Date | |
|---|---|---|---|
| 5 | San Jose Earthquakes | 06-05-2018 | Match details |
| 3 | Real Salt Lake | 07-10-2018 | Match details |
| 3 | Houston Dynamo | 16-09-2018 | Match details |
| 3 | New England Revolution | 02-09-2018 | Match details |