| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Tim Oermann | Defender - Centre-Back | Germany | SK Sturm Graz | 2003 | €5.0m |
| 2 |  Victor Gabriel | Defender - Centre-Back | Brazil | Sport Club Internacional | 2004 | €5.0m |
| 3 |  Taha Altıkardeş | Defender - Centre-Back | Türkiye | Göztepe | 2003 | €5.5m |
| 4 |  Rav van den Berg | Defender - Centre-Back | Netherlands | 1.FC Köln | 2004 | €4.5m |
| 5 |  Gora Diouf | Defender - Centre-Back | Senegal | KV Mechelen | 2003 | €4.0m |
| 6 |  Clemens Riedel | Defender - Centre-Back | Germany | RCD Espanyol Barcelona | 2003 | €4.0m |
| 7 |  Jan Ziolkowski | Defender - Centre-Back | Poland | AS Roma | 2005 | €4.0m |
| 8 |  Mikayil Faye | Defender - Centre-Back | Senegal | US Cremonese | 2004 | €6.0m |
| 9 |  Nobel Mendy | Defender - Centre-Back | Senegal Guinea-Bissau | Rayo Vallecano | 2004 | €4.0m |
| 10 |  Tomás Avilés | Defender - Centre-Back | Argentina Chile | Inter Miami CF | 2004 | €6.0m |
| 11 |  Eivind Helland | Defender - Centre-Back | Norway | SK Brann | 2005 | €6.0m |
| 12 |  Junior Diaz | Defender - Centre-Back | Cote d'Ivoire France | Stade Brestois 29 | 2003 | €4.0m |
| 13 |  Willy Kambwala | Defender - Centre-Back | France DR Congo | Villarreal CF | 2004 | €4.0m |
| 14 |  Ayman El Wafi | Defender - Centre-Back | Morocco Italy | FC Lugano | 2004 | €4.0m |
| 15 |  Mariano Troilo | Defender - Centre-Back | Argentina | Parma Calcio 1913 | 2003 | €4.0m |
| 16 |  Taras Mykhavko | Defender - Centre-Back | Ukraine | Dynamo Kyiv | 2005 | €6.0m |
| 17 |  Emmanuel Biumla | Defender - Centre-Back | France Cameroon | Angers SCO | 2005 | €4.0m |
| 18 |  Lamare Bogarde | Defender - Centre-Back | Netherlands Suriname | Aston Villa | 2004 | €6.0m |
| 19 |  Charlie Hughes | Defender - Centre-Back | England | Hull City | 2003 | €3.5m |
| 20 |  Matías Moreno | Defender - Centre-Back | Argentina | Levante UD | 2003 | €3.4m |
| 21 |  Anrie Chase | Defender - Centre-Back | Japan United States | Red Bull Salzburg | 2004 | €3.0m |
| 22 |  Viktor Melekhin | Defender - Centre-Back | Russia | FC Rostov | 2003 | €3.0m |
| 23 |  Alessandro Dellavalle | Defender - Centre-Back | Italy | Modena FC | 2004 | €3.0m |
| 24 |  Hendry Blank | Defender - Centre-Back | Germany Ghana | Hannover 96 | 2004 | €3.0m |
| 25 |  Joshua Quarshie | Defender - Centre-Back | Germany Ghana | Southampton FC | 2004 | €3.0m |
| 26 |  Fedde Leysen | Defender - Centre-Back | Belgium | Union Saint-Gilloise | 2003 | €3.0m |
| 27 |  Tyler Fredricson | Defender - Centre-Back | England | Manchester United | 2005 | €3.0m |
| 28 |  Tim Drexler | Defender - Centre-Back | Germany | 1.FC Nuremberg | 2005 | €3.0m |
| 29 |  Dominik Prpić | Defender - Centre-Back | Croatia | FC Porto | 2004 | €3.0m |
| 30 |  Pau Navarro | Defender - Centre-Back | Spain | Villarreal CF | 2005 | €3.0m |