| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 4 | Bayern Munich | 19-04-2000 | Quarter-finals | Match details |
| 3 | Bayern Munich | 04-04-2000 | Quarter-finals | Match details |
| 3 | Olympiakos | 02-11-1999 | First Group Stage | Match details |
| 3 | Molde FK | 15-09-1999 | First Group Stage | Match details |
| 2 | Sparta Prague | 15-03-2000 | Second Group Stage | Match details |
| 2 | Barcelona | 07-03-2000 | Second Group Stage | Match details |
| 2 | Barcelona | 01-03-2000 | Second Group Stage | Match details |
| 2 | Hertha BSC | 08-12-1999 | Second Group Stage | Match details |
