| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | Dinamo Zagreb | 14-03-2019 | Round of 16 | Match details |
| 3 | Galatasaray SK | 14-02-2019 | Round of 32 | Match details |
| 1 | Eintracht Frankfurt | 18-04-2019 | Quarter-finals | Match details |
| 1 | Eintracht Frankfurt | 11-04-2019 | Quarter-finals | Match details |
