| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 7 | Olympique Marseille | 24-11-1999 | Second Group Stage | Match details |
| 5 | Dynamo Kyiv | 22-09-1999 | First Group Stage | Match details |
| 4 | Chelsea | 22-03-2000 | Second Group Stage | Match details |
| 4 | Feyenoord | 29-02-2000 | Second Group Stage | Match details |
| 4 | Bayer Leverkusen | 14-09-1999 | First Group Stage | Match details |
| 3 | Feyenoord | 08-03-2000 | Second Group Stage | Match details |
| 2 | Valencia | 05-04-2000 | Quarter-finals | Match details |
