| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Luca Jaquez | Defender - Centre-Back | Switzerland Dominican Republic | VfB Stuttgart | 2003 | €6.0m |
| 2 |  Bright Arrey-Mbi | Defender - Centre-Back | Germany England | SC Braga | 2003 | €6.0m |
| 3 |  Christopher Wooh | Defender - Centre-Back | Cameroon France | Spartak Moscow | 2001 | €6.0m |
| 4 |  Nicolò Bertola | Defender - Centre-Back | Italy | Udinese Calcio | 2003 | €6.0m |
| 5 |  Adilson Malanda | Defender - Centre-Back | France Congo | Charlotte FC | 2001 | €6.0m |
| 6 |  Thomas Kristensen | Defender - Centre-Back | Denmark | Udinese Calcio | 2002 | €6.0m |
| 7 |  Adamo Nagalo | Defender - Centre-Back | Burkina Faso Cote d'Ivoire | PSV Eindhoven | 2002 | €6.0m |
| 8 |  Lorenzo Pirola | Defender - Centre-Back | Italy | Olympiacos Piraeus | 2002 | €6.0m |
| 9 |  Jesús Orozco Chiquete | Defender - Centre-Back | Mexico | CD Cruz Azul | 2002 | €6.5m |
| 10 |  Mattia Viti | Defender - Centre-Back | Italy | ACF Fiorentina | 2002 | €5.5m |
| 11 |  Teden Mengi | Defender - Centre-Back | England Angola | Luton Town | 2002 | €5.5m |
| 12 |  Ibrahima Bamba | Defender - Centre-Back | Italy Cote d'Ivoire | Al-Duhail SC | 2002 | €5.5m |
| 13 |  Sampson Dweh | Defender - Centre-Back | Liberia | FC Viktoria Plzen | 2001 | €6.5m |
| 14 |  Daniele Ghilardi | Defender - Centre-Back | Italy | AS Roma | 2003 | €5.0m |
| 15 |  Ruslan Litvinov | Defender - Centre-Back | Russia | Spartak Moscow | 2001 | €5.0m |
| 16 |  Karim Sow | Defender - Centre-Back | Switzerland | FC Lausanne-Sport | 2003 | €5.0m |
| 17 |  Rafa Marín | Defender - Centre-Back | Spain | Villarreal CF | 2002 | €7.0m |
| 18 |  David Ricardo | Defender - Centre-Back | Brazil | Botafogo de Futebol e Regatas | 2002 | €5.0m |
| 19 |  Tarik Muharemović | Defender - Centre-Back | Bosnia-Herzegovina Slovenia | US Sassuolo | 2003 | €7.0m |
| 20 |  Adrian Leon Barisic | Defender - Centre-Back | Bosnia-Herzegovina Croatia | FC Basel 1893 | 2001 | €5.0m |
| 21 |  Lucas Hey | Defender - Centre-Back | Denmark | RSC Anderlecht | 2003 | €5.0m |
| 22 |  Clément Akpa | Defender - Centre-Back | Cote d'Ivoire France | AJ Auxerre | 2001 | €5.0m |
| 23 |  Ahmetcan Kaplan | Defender - Centre-Back | Türkiye | NEC Nijmegen | 2003 | €5.0m |
| 24 |  Isaak Touré | Defender - Centre-Back | France Cote d'Ivoire | FC Lorient | 2003 | €7.0m |
| 25 |  Étienne Youté Kinkoué | Defender - Centre-Back | France Cameroon | Le Havre AC | 2002 | €7.0m |
| 26 |  André Amaro | Defender - Centre-Back | Portugal | Al-Rayyan SC | 2002 | €5.0m |
| 27 |  Ramon Hendriks | Defender - Centre-Back | Netherlands | VfB Stuttgart | 2001 | €5.0m |
| 28 |  Christiaan Ravych | Defender - Centre-Back | Belgium | Cercle Brugge | 2002 | €4.5m |
| 29 |  Finn van Breemen | Defender - Centre-Back | Netherlands | FC Basel 1893 | 2003 | €4.5m |
| 30 |  Becir Omeragic | Defender - Centre-Back | Switzerland Bosnia-Herzegovina | Montpellier HSC | 2002 | €4.5m |