| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 5 | TSG 1899 Hoffenheim | 23-11-2017 | Group Stage | Match details |
| 4 | Ludogorets Razgrad | 02-11-2017 | Group Stage | Match details |
| 3 | Olympique Marseille | 22-02-2018 | Round of 32 | Match details |
| 3 | Istanbul Basaksehir | 07-12-2017 | Group Stage | Match details |
| 3 | Ludogorets Razgrad | 19-10-2017 | Group Stage | Match details |
| 2 | Olympique Marseille | 15-02-2018 | Round of 32 | Match details |
| 2 | Istanbul Basaksehir | 28-09-2017 | Group Stage | Match details |
