| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Max Bruns | Defender - Centre-Back | Netherlands | Twente Enschede FC | 2002 | €2.5m |
| 2 |  Rein Van Helden | Defender - Centre-Back | Belgium | Sint-Truidense VV | 2002 | €2.5m |
| 3 |  Henrik Falchener | Defender - Centre-Back | Norway | Viking FK | 2003 | €2.5m |
| 4 |  Serdar Saatçı | Defender - Centre-Back | Türkiye | Trabzonspor | 2003 | €2.5m |
| 5 |  Eduardo Águila | Defender - Centre-Back | Mexico | Atlético de San Luis | 2002 | €2.5m |
| 6 |  Metehan Baltacı | Defender - Centre-Back | Türkiye | Galatasaray | 2002 | €2.5m |
| 7 |  Botond Balogh | Defender - Centre-Back | Hungary | Kocaelispor | 2002 | €2.4m |
| 8 |  Bruno Amione | Defender - Centre-Back | Argentina Italy | Santos Laguna | 2002 | €2.8m |
| 9 |  Check Keita | Defender - Centre-Back | Mali France | Royal Charleroi SC | 2003 | €2.0m |
| 10 |  Chico Lamba | Defender - Centre-Back | Portugal Guinea-Bissau | AS Saint-Étienne | 2003 | €3.0m |
| 11 |  Saba Sazonov | Defender - Centre-Back | Georgia Russia | Torino FC | 2002 | €2.0m |
| 12 |  Gustavo Martins | Defender - Centre-Back | Brazil | Grêmio Foot-Ball Porto Alegrense | 2002 | €3.0m |
| 13 |  Alessandro Marcandalli | Defender - Centre-Back | Italy Nigeria | Genoa CFC | 2002 | €2.0m |
| 14 |  Ravil Tagir | Defender - Centre-Back | Türkiye United Arab Emirates | Al-Jazira Club | 2003 | €2.0m |
| 15 |  James Hill | Defender - Centre-Back | England | AFC Bournemouth | 2002 | €3.0m |
| 16 |  Noah Eile | Defender - Centre-Back | Sweden | New York Red Bulls | 2002 | €2.0m |
| 17 |  Maximilian Dietz | Defender - Centre-Back | United States Germany | SpVgg Greuther Fürth | 2002 | €2.0m |
| 18 |  José Marsà | Defender - Centre-Back | Spain | KV Mechelen | 2002 | €3.0m |
| 19 |  Santiago Mouriño | Defender - Centre-Back | Uruguay Spain | Villarreal CF | 2002 | €3.0m |
| 20 |  Alejandro Gómez | Defender - Centre-Back | Mexico | Club Tijuana | 2002 | €2.0m |
| 21 |  Christian Marques | Defender - Centre-Back | Portugal Switzerland | CD Tondela | 2003 | €2.0m |
| 22 |  Márton Dárdai | Defender - Centre-Back | Hungary Germany | Hertha BSC | 2002 | €2.0m |
| 23 |  Naves | Defender - Centre-Back | Brazil | FC Alverca | 2002 | €2.0m |
| 24 |  Renan | Defender - Centre-Back | Brazil United Arab Emirates | Shabab Al-Ahli Club | 2002 | €3.0m |
| 25 |  Fedde Leysen | Defender - Centre-Back | Belgium | Union Saint-Gilloise | 2003 | €3.0m |
| 26 |  Jenson Seelt | Defender - Centre-Back | Netherlands Indonesia | VfL Wolfsburg | 2003 | €2.0m |
| 27 |  Giovanni Bonfanti | Defender - Centre-Back | Italy | Pisa Sporting Club | 2003 | €3.0m |
| 28 |  Facundo González | Defender - Centre-Back | Uruguay Italy | Racing Santander | 2003 | €3.0m |
| 29 |  Ilario Monterisi | Defender - Centre-Back | Italy | Frosinone Calcio | 2001 | €1.8m |
| 30 |  Tanguy Zoukrou | Defender - Centre-Back | France | BSC Young Boys | 2003 | €1.8m |