| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 5 | RSC Anderlecht | 20-09-2018 | Group Stage | Match details |
| 3 | Dinamo Zagreb | 08-11-2018 | Group Stage | Match details |
| 2 | Fenerbahce | 13-12-2018 | Group Stage | Match details |
| 2 | RSC Anderlecht | 29-11-2018 | Group Stage | Match details |
| 2 | Dinamo Zagreb | 25-10-2018 | Group Stage | Match details |
| 1 | Fenerbahce | 04-10-2018 | Group Stage | Match details |
