| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Adamo Nagalo | Defender - Centre-Back | Burkina Faso Cote d'Ivoire | PSV Eindhoven | 2002 | €6.0m |
| 2 |  Lamare Bogarde | Defender - Centre-Back | Netherlands Suriname | Aston Villa | 2004 | €6.0m |
| 3 |  Tomás Avilés | Defender - Centre-Back | Argentina Chile | Inter Miami CF | 2004 | €6.0m |
| 4 |  Saïdou Sow | Defender - Centre-Back | Guinea France | RC Strasbourg Alsace | 2002 | €6.0m |
| 5 |  Nicolò Bertola | Defender - Centre-Back | Italy | Udinese Calcio | 2003 | €6.0m |
| 6 |  Bright Arrey-Mbi | Defender - Centre-Back | Germany England | SC Braga | 2003 | €6.0m |
| 7 |  Taha Altıkardeş | Defender - Centre-Back | Türkiye | Göztepe | 2003 | €5.5m |
| 8 |  André Amaro | Defender - Centre-Back | Portugal | Al-Rayyan SC | 2002 | €5.0m |
| 9 |  Daniele Ghilardi | Defender - Centre-Back | Italy | AS Roma | 2003 | €5.0m |
| 10 |  Tim Oermann | Defender - Centre-Back | Germany | SK Sturm Graz | 2003 | €5.0m |
| 11 |  Ahmetcan Kaplan | Defender - Centre-Back | Türkiye | NEC Nijmegen | 2003 | €5.0m |
| 12 |  Karim Sow | Defender - Centre-Back | Switzerland | FC Lausanne-Sport | 2003 | €5.0m |
| 13 |  Isaak Touré | Defender - Centre-Back | France Cote d'Ivoire | FC Lorient | 2003 | €7.0m |
| 14 |  Lucas Hey | Defender - Centre-Back | Denmark | RSC Anderlecht | 2003 | €5.0m |
| 15 |  Victor Gabriel | Defender - Centre-Back | Brazil | Sport Club Internacional | 2004 | €5.0m |
| 16 |  David Ricardo | Defender - Centre-Back | Brazil | Botafogo de Futebol e Regatas | 2002 | €5.0m |
| 17 |  Tarik Muharemović | Defender - Centre-Back | Bosnia-Herzegovina Slovenia | US Sassuolo | 2003 | €7.0m |
| 18 |  Finn van Breemen | Defender - Centre-Back | Netherlands | FC Basel 1893 | 2003 | €4.5m |
| 19 |  Aurèle Amenda | Defender - Centre-Back | Switzerland Cameroon | Eintracht Frankfurt | 2003 | €7.5m |
| 20 |  Andreas Ntoi | Defender - Centre-Back | Greece Albania | Rio Ave FC | 2003 | €4.5m |
| 21 |  Robert Renan | Defender - Centre-Back | Brazil | Clube de Regatas Vasco da Gama | 2003 | €7.5m |
| 22 |  Christiaan Ravych | Defender - Centre-Back | Belgium | Cercle Brugge | 2002 | €4.5m |
| 23 |  Kévin Boma | Defender - Centre-Back | Togo France | GD Estoril Praia | 2002 | €4.0m |
| 24 |  Tomás Palacios | Defender - Centre-Back | Argentina | Inter Milan | 2003 | €4.0m |
| 25 |  Max Rosenfelder | Defender - Centre-Back | Germany | SC Freiburg | 2003 | €8.0m |
| 26 |  Gora Diouf | Defender - Centre-Back | Senegal | KV Mechelen | 2003 | €4.0m |
| 27 |  Mariano Troilo | Defender - Centre-Back | Argentina | Parma Calcio 1913 | 2003 | €4.0m |
| 28 |  Clemens Riedel | Defender - Centre-Back | Germany | RCD Espanyol Barcelona | 2003 | €4.0m |
| 29 |  Junior Diaz | Defender - Centre-Back | Cote d'Ivoire France | Stade Brestois 29 | 2003 | €4.0m |
| 30 |  Ayman El Wafi | Defender - Centre-Back | Morocco Italy | FC Lugano | 2004 | €4.0m |