| Yellow | VS Club | Date | Sections | |
|---|---|---|---|---|
| 5 | AFC Ajax | 22-10-2003 | Group Stage | Match details |
| 4 | AC Milan | 09-12-2003 | Group Stage | Match details |
| 4 | Club Brugge | 16-09-2003 | Group Stage | Match details |
| 3 | AFC Ajax | 04-11-2003 | Group Stage | Match details |
| 2 | Arsenal | 10-03-2004 | Round of 16 | Match details |
