| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | Qarabag FK | 08-11-2018 | Group Stage | Match details |
| 4 | Qarabag FK | 25-10-2018 | Group Stage | Match details |
| 3 | Arsenal | 29-11-2018 | Group Stage | Match details |
| 1 | Sporting Lisbon | 04-10-2018 | Group Stage | Match details |
| 1 | Arsenal | 20-09-2018 | Group Stage | Match details |
