| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 6 | Sporting Lisbon | 29-11-2018 | Group Stage | Match details |
| 2 | Vorskla Poltava | 08-11-2018 | Group Stage | Match details |
| 1 | Arsenal | 13-12-2018 | Group Stage | Match details |
| 1 | Vorskla Poltava | 25-10-2018 | Group Stage | Match details |
| 1 | Arsenal | 04-10-2018 | Group Stage | Match details |
| 1 | Sporting Lisbon | 20-09-2018 | Group Stage | Match details |
