| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Mauro Perkovic | Defender - Centre-Back | Croatia | Cracovia | 2003 | €3.5m |
| 2 |  Nathan Ngoy | Defender - Centre-Back | Belgium DR Congo | LOSC Lille | 2003 | €3.5m |
| 3 |  Charlie Hughes | Defender - Centre-Back | England | Hull City | 2003 | €3.5m |
| 4 |  Mihajlo Ilić | Defender - Centre-Back | Serbia | RSC Anderlecht | 2003 | €3.5m |
| 5 |  Oliver Provstgaard | Defender - Centre-Back | Denmark | SS Lazio | 2003 | €3.5m |
| 6 |  Emin Bayram | Defender - Centre-Back | Türkiye | KVC Westerlo | 2003 | €3.5m |
| 7 |  Dominik Prpić | Defender - Centre-Back | Croatia | FC Porto | 2004 | €3.0m |
| 8 |  Chico Lamba | Defender - Centre-Back | Portugal Guinea-Bissau | AS Saint-Étienne | 2003 | €3.0m |
| 9 |  Anrie Chase | Defender - Centre-Back | Japan United States | Red Bull Salzburg | 2004 | €3.0m |
| 10 |  Alessandro Dellavalle | Defender - Centre-Back | Italy | Modena FC | 2004 | €3.0m |
| 11 |  Facundo González | Defender - Centre-Back | Uruguay Italy | Racing Santander | 2003 | €3.0m |
| 12 |  Giovanni Bonfanti | Defender - Centre-Back | Italy | Pisa Sporting Club | 2003 | €3.0m |
| 13 |  Ronnie Edwards | Defender - Centre-Back | England | Southampton FC | 2003 | €3.8m |
| 14 |  Viktor Melekhin | Defender - Centre-Back | Russia | FC Rostov | 2003 | €3.0m |
| 15 |  Joshua Quarshie | Defender - Centre-Back | Germany Ghana | Southampton FC | 2004 | €3.0m |
| 16 |  Hendry Blank | Defender - Centre-Back | Germany Ghana | Hannover 96 | 2004 | €3.0m |
| 17 |  Fedde Leysen | Defender - Centre-Back | Belgium | Union Saint-Gilloise | 2003 | €3.0m |
| 18 |  Nobel Mendy | Defender - Centre-Back | Senegal Guinea-Bissau | Rayo Vallecano | 2004 | €4.0m |
| 19 |  Tomás Palacios | Defender - Centre-Back | Argentina | Inter Milan | 2003 | €4.0m |
| 20 |  Junior Diaz | Defender - Centre-Back | Cote d'Ivoire France | Stade Brestois 29 | 2003 | €4.0m |
| 21 |  Kévin Boma | Defender - Centre-Back | Togo France | GD Estoril Praia | 2002 | €4.0m |
| 22 |  Clemens Riedel | Defender - Centre-Back | Germany | RCD Espanyol Barcelona | 2003 | €4.0m |
| 23 |  Mariano Troilo | Defender - Centre-Back | Argentina | Parma Calcio 1913 | 2003 | €4.0m |
| 24 |  Ayman El Wafi | Defender - Centre-Back | Morocco Italy | FC Lugano | 2004 | €4.0m |
| 25 |  Nicolás Romero | Defender - Centre-Back | Argentina | Minnesota United FC | 2003 | €2.8m |
| 26 |  Gora Diouf | Defender - Centre-Back | Senegal | KV Mechelen | 2003 | €4.0m |
| 27 |  Willy Kambwala | Defender - Centre-Back | France DR Congo | Villarreal CF | 2004 | €4.0m |
| 28 |  Serdar Saatçı | Defender - Centre-Back | Türkiye | Trabzonspor | 2003 | €2.5m |
| 29 |  Linus Gechter | Defender - Centre-Back | Germany | Hertha BSC | 2004 | €2.5m |
| 30 |  Marcel Beifus | Defender - Centre-Back | Germany | Karlsruher SC | 2002 | €2.5m |