| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | FK Jablonec | 25-10-2018 | Group Stage | Match details |
| 4 | Stade Rennes | 04-10-2018 | Group Stage | Match details |
| 2 | Stade Rennes | 13-12-2018 | Group Stage | Match details |
| 2 | Dynamo Kyiv | 29-11-2018 | Group Stage | Match details |
| 2 | FK Jablonec | 08-11-2018 | Group Stage | Match details |
