| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Alexander Prass | Defender - Left-Back | Austria | TSG 1899 Hoffenheim | 2001 | €5.0m |
| 2 |  Carlos Romero | Defender - Left-Back | Spain | RCD Espanyol Barcelona | 2001 | €5.0m |
| 3 |  Rubens | Defender - Left-Back | Brazil | Dynamo Moscow | 2001 | €6.0m |
| 4 |  Pedro Henrique | Defender - Left-Back | Brazil | Shakhtar Donetsk | 2002 | €4.0m |
| 5 |  Josh Wilson-Esbrand | Defender - Left-Back | England Jamaica | Radomiak Radom | 2002 | €4.0m |
| 6 |  Tuur Rommens | Defender - Left-Back | Belgium | KVC Westerlo | 2003 | €4.0m |
| 7 |  Bjorn Meijer | Defender - Left-Back | Netherlands | Club Brugge KV | 2003 | €4.0m |
| 8 |  Luca Netz | Defender - Left-Back | Germany | Borussia Mönchengladbach | 2003 | €6.0m |
| 9 |  Jordy Makengo | Defender - Left-Back | France DR Congo | SC Freiburg | 2001 | €6.0m |
| 10 |  Luke Thomas | Defender - Left-Back | England | Leicester City | 2001 | €6.0m |
| 11 |  Omar Campos | Defender - Left-Back | Mexico | CD Cruz Azul | 2002 | €3.8m |
| 12 |  Rıdvan Yılmaz | Defender - Left-Back | Türkiye | Besiktas JK | 2001 | €3.5m |
| 13 |  Vanderlan | Defender - Left-Back | Brazil | Red Bull Bragantino | 2002 | €3.5m |
| 14 |  Frans Krätzig | Defender - Left-Back | Germany | Red Bull Salzburg | 2003 | €3.5m |
| 15 |  Jhoanner Chávez | Defender - Left-Back | Ecuador | RC Lens | 2002 | €3.5m |
| 16 |  Moussa N'Diaye | Defender - Left-Back | Senegal | RSC Anderlecht | 2002 | €3.0m |
| 17 |  Cuiabano | Defender - Left-Back | Brazil | Botafogo de Futebol e Regatas | 2003 | €7.0m |
| 18 |  Lucas Esquivel | Defender - Left-Back | Argentina | Club Athletico Paranaense | 2001 | €3.0m |
| 19 |  Jesús Vázquez | Defender - Left-Back | Spain | Valencia CF | 2003 | €3.0m |
| 20 |  Samuel Dahl | Defender - Left-Back | Sweden | SL Benfica | 2003 | €7.0m |
| 21 |  Archie Brown | Defender - Left-Back | England Jamaica | Fenerbahce | 2002 | €7.0m |
| 22 |  Bashir Humphreys | Defender - Left-Back | England Uganda | Burnley FC | 2003 | €7.0m |
| 23 |  Kristoffer Lund | Defender - Left-Back | United States Denmark | 1.FC Köln | 2002 | €2.7m |
| 24 |  Jordan Bos | Defender - Left-Back | Australia Netherlands | Feyenoord Rotterdam | 2002 | €2.7m |
| 25 |  Julián Aude | Defender - Left-Back | Argentina Italy | Los Angeles Galaxy | 2003 | €2.5m |
| 26 |  Hugo | Defender - Left-Back | Brazil | Al-Wasl FC | 2001 | €2.5m |
| 27 |  Adama Boiro | Defender - Left-Back | Spain Senegal | Athletic Bilbao | 2002 | €2.5m |
| 28 |  Javi López | Defender - Left-Back | Spain | Real Oviedo | 2002 | €7.5m |
| 29 |  Ebenezer Annan | Defender - Left-Back | Ghana | AS Saint-Étienne | 2002 | €2.5m |
| 30 |  John Tolkin | Defender - Left-Back | United States | Holstein Kiel | 2002 | €2.5m |