| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Luca Marianucci | Defender - Centre-Back | Italy | SSC Napoli | 2004 | €7.5m |
| 2 |  Yarek Gasiorowski | Defender - Centre-Back | Spain Poland | PSV Eindhoven | 2005 | €7.5m |
| 3 |  Aurèle Amenda | Defender - Centre-Back | Switzerland Cameroon | Eintracht Frankfurt | 2003 | €7.5m |
| 4 |  Robert Renan | Defender - Centre-Back | Brazil | Clube de Regatas Vasco da Gama | 2003 | €7.5m |
| 5 |  Alessandro Circati | Defender - Centre-Back | Australia Italy | Parma Calcio 1913 | 2003 | €8.0m |
| 6 |  Alan Matturro | Defender - Centre-Back | Uruguay Italy | Levante UD | 2004 | €7.0m |
| 7 |  Jonas Adjetey | Defender - Centre-Back | Ghana | FC Basel 1893 | 2003 | €8.0m |
| 8 |  Aarón Anselmino | Defender - Centre-Back | Argentina | Borussia Dortmund | 2005 | €8.0m |
| 9 |  Saba Goglichidze | Defender - Centre-Back | Georgia | Udinese Calcio | 2004 | €8.0m |
| 10 |  Samson Baidoo | Defender - Centre-Back | Austria | RC Lens | 2004 | €8.0m |
| 11 |  Soumaïla Coulibaly | Defender - Centre-Back | France Mali | RC Strasbourg Alsace | 2003 | €8.0m |
| 12 |  Eivind Helland | Defender - Centre-Back | Norway | SK Brann | 2005 | €6.0m |
| 13 |  Taras Mykhavko | Defender - Centre-Back | Ukraine | Dynamo Kyiv | 2005 | €6.0m |
| 14 |  Mikayil Faye | Defender - Centre-Back | Senegal | US Cremonese | 2004 | €6.0m |
| 15 |  Lamare Bogarde | Defender - Centre-Back | Netherlands Suriname | Aston Villa | 2004 | €6.0m |
| 16 |  Tomás Avilés | Defender - Centre-Back | Argentina Chile | Inter Miami CF | 2004 | €6.0m |
| 17 |  Taha Altıkardeş | Defender - Centre-Back | Türkiye | Göztepe | 2003 | €5.5m |
| 18 |  Wouter Goes | Defender - Centre-Back | Netherlands | AZ Alkmaar | 2004 | €10.0m |
| 19 |  Nnamdi Collins | Defender - Centre-Back | Germany Nigeria | Eintracht Frankfurt | 2004 | €10.0m |
| 20 |  Zeno Van Den Bosch | Defender - Centre-Back | Belgium | Royal Antwerp FC | 2003 | €10.0m |
| 21 |  Diego Coppola | Defender - Centre-Back | Italy Netherlands | Brighton & Hove Albion | 2003 | €10.0m |
| 22 |  Sadibou Sané | Defender - Centre-Back | Senegal | FC Metz | 2004 | €5.0m |
| 23 |  Tim Oermann | Defender - Centre-Back | Germany | SK Sturm Graz | 2003 | €5.0m |
| 24 |  Victor Gabriel | Defender - Centre-Back | Brazil | Sport Club Internacional | 2004 | €5.0m |
| 25 |  Rav van den Berg | Defender - Centre-Back | Netherlands | 1.FC Köln | 2004 | €4.5m |
| 26 |  Clemens Riedel | Defender - Centre-Back | Germany | RCD Espanyol Barcelona | 2003 | €4.0m |
| 27 |  Junior Diaz | Defender - Centre-Back | Cote d'Ivoire France | Stade Brestois 29 | 2003 | €4.0m |
| 28 |  Nobel Mendy | Defender - Centre-Back | Senegal Guinea-Bissau | Rayo Vallecano | 2004 | €4.0m |
| 29 |  Jan Ziolkowski | Defender - Centre-Back | Poland | AS Roma | 2005 | €4.0m |
| 30 |  Emmanuel Biumla | Defender - Centre-Back | France Cameroon | Angers SCO | 2005 | €4.0m |