| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 3 | HNK Rijeka | 02-11-2017 | Group Stage | Match details |
| 3 | HNK Rijeka | 19-10-2017 | Group Stage | Match details |
| 2 | AC Milan | 23-11-2017 | Group Stage | Match details |
| 1 | AEK Athens | 07-12-2017 | Group Stage | Match details |
| 1 | AEK Athens | 28-09-2017 | Group Stage | Match details |
