| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Álex Valle | Defender - Left-Back | Spain | Como 1907 | 2004 | €6.0m |
| 2 |  Bashir Humphreys | Defender - Left-Back | England Uganda | Burnley FC | 2003 | €7.0m |
| 3 |  Samuel Dahl | Defender - Left-Back | Sweden | SL Benfica | 2003 | €7.0m |
| 4 |  Josh Doig | Defender - Left-Back | Scotland | US Sassuolo | 2002 | €5.0m |
| 5 |  Archie Brown | Defender - Left-Back | England Jamaica | Fenerbahce | 2002 | €7.0m |
| 6 |  Mathias Løvik | Defender - Left-Back | Norway | Parma Calcio 1913 | 2003 | €5.0m |
| 7 |  Martim Marques | Defender - Left-Back | Portugal | FC Lugano | 2004 | €7.0m |
| 8 |  Cuiabano | Defender - Left-Back | Brazil | Botafogo de Futebol e Regatas | 2003 | €7.0m |
| 9 |  Matteo Dams | Defender - Left-Back | Belgium | Al-Ahli SFC | 2004 | €4.5m |
| 10 |  Jefté | Defender - Left-Back | Brazil | Sociedade Esportiva Palmeiras | 2003 | €4.0m |
| 11 |  Josh Wilson-Esbrand | Defender - Left-Back | England Jamaica | Radomiak Radom | 2002 | €4.0m |
| 12 |  Bjorn Meijer | Defender - Left-Back | Netherlands | Club Brugge KV | 2003 | €4.0m |
| 13 |  Hugo Bueno | Defender - Left-Back | Spain | Wolverhampton Wanderers | 2002 | €8.0m |
| 14 |  Tuur Rommens | Defender - Left-Back | Belgium | KVC Westerlo | 2003 | €4.0m |
| 15 |  Pedro Henrique | Defender - Left-Back | Brazil | Shakhtar Donetsk | 2002 | €4.0m |
| 16 |  Omar Campos | Defender - Left-Back | Mexico | CD Cruz Azul | 2002 | €3.8m |
| 17 |  Vanderlan | Defender - Left-Back | Brazil | Red Bull Bragantino | 2002 | €3.5m |
| 18 |  Frans Krätzig | Defender - Left-Back | Germany | Red Bull Salzburg | 2003 | €3.5m |
| 19 |  Juan Larios | Defender - Left-Back | Spain | Cultural Leonesa | 2004 | €3.5m |
| 20 |  Jaouen Hadjam | Defender - Left-Back | Algeria France | BSC Young Boys | 2003 | €9.0m |
| 21 |  Jesús Vázquez | Defender - Left-Back | Spain | Valencia CF | 2003 | €3.0m |
| 22 |  Moussa N'Diaye | Defender - Left-Back | Senegal | RSC Anderlecht | 2002 | €3.0m |
| 23 |  Nazinho | Defender - Left-Back | Portugal Guinea-Bissau | Cercle Brugge | 2003 | €3.0m |
| 24 |  Mateo Chávez | Defender - Left-Back | Mexico | AZ Alkmaar | 2004 | €3.0m |
| 25 |  Jordan Bos | Defender - Left-Back | Australia Netherlands | Feyenoord Rotterdam | 2002 | €2.7m |
| 26 |  Ebenezer Annan | Defender - Left-Back | Ghana | AS Saint-Étienne | 2002 | €2.5m |
| 27 |  Adama Boiro | Defender - Left-Back | Spain Senegal | Athletic Bilbao | 2002 | €2.5m |
| 28 |  John Tolkin | Defender - Left-Back | United States | Holstein Kiel | 2002 | €2.5m |
| 29 |  Julián Aude | Defender - Left-Back | Argentina Italy | Los Angeles Galaxy | 2003 | €2.5m |
| 30 |  Edoardo Pieragnolo | Defender - Left-Back | Italy | US Sassuolo | 2003 | €2.4m |