Quarter-finals
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg |
|---|---|---|---|---|
| Bordeaux | 2–4 | Valencia | 1–2 | 1–2 |
| Marseille | 2–0 | Internazionale | 1–0 | 1–0 |
| Celtic | 1–3 | Villarreal | 1–1 | 0–2 |
| PSV Eindhoven | 2–3 | Newcastle United | 1–1 | 1–2 |
Read more about this topic: 2003–04 UEFA Cup
Quarter-finals
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg |
|---|---|---|---|---|
| Bordeaux | 2–4 | Valencia | 1–2 | 1–2 |
| Marseille | 2–0 | Internazionale | 1–0 | 1–0 |
| Celtic | 1–3 | Villarreal | 1–1 | 0–2 |
| PSV Eindhoven | 2–3 | Newcastle United | 1–1 | 1–2 |
Read more about this topic: 2003–04 UEFA Cup