| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Julián Aude | Defender - Left-Back | Argentina Italy | Los Angeles Galaxy | 2003 | €2.5m |
| 2 |  Ebenezer Annan | Defender - Left-Back | Ghana | AS Saint-Étienne | 2002 | €2.5m |
| 3 |  John Tolkin | Defender - Left-Back | United States | Holstein Kiel | 2002 | €2.5m |
| 4 |  Hugo | Defender - Left-Back | Brazil | Al-Wasl FC | 2001 | €2.5m |
| 5 |  Edoardo Pieragnolo | Defender - Left-Back | Italy | US Sassuolo | 2003 | €2.4m |
| 6 |  Kristoffer Lund | Defender - Left-Back | United States Denmark | 1.FC Köln | 2002 | €2.7m |
| 7 |  Jordan Bos | Defender - Left-Back | Australia Netherlands | Feyenoord Rotterdam | 2002 | €2.7m |
| 8 |  Daouda Guindo | Defender - Left-Back | Mali | Stade Brestois 29 | 2002 | €2.0m |
| 9 |  Leonardo Buta | Defender - Left-Back | Portugal Angola | SD Eibar | 2002 | €2.0m |
| 10 |  Moussa N'Diaye | Defender - Left-Back | Senegal | RSC Anderlecht | 2002 | €3.0m |
| 11 |  George Bello | Defender - Left-Back | United States Nigeria | LASK | 2002 | €2.0m |
| 12 |  Oleksandr Martynyuk | Defender - Left-Back | Ukraine | Metalist 1925 Kharkiv | 2001 | €2.0m |
| 13 |  Lucas Esquivel | Defender - Left-Back | Argentina | Club Athletico Paranaense | 2001 | €3.0m |
| 14 |  Jesús Vázquez | Defender - Left-Back | Spain | Valencia CF | 2003 | €3.0m |
| 15 |  Artem Smolyakov | Defender - Left-Back | Ukraine | Los Angeles FC | 2003 | €1.8m |
| 16 |  Jimer Fory | Defender - Left-Back | Colombia | Portland Timbers | 2002 | €1.8m |
| 17 |  Jhoanner Chávez | Defender - Left-Back | Ecuador | RC Lens | 2002 | €3.5m |
| 18 |  Frans Krätzig | Defender - Left-Back | Germany | Red Bull Salzburg | 2003 | €3.5m |
| 19 |  David Herold | Defender - Left-Back | Germany | Karlsruher SC | 2003 | €1.5m |
| 20 |  Roko Jurisic | Defender - Left-Back | Croatia | NK Osijek | 2001 | €1.5m |
| 21 |  Patryck | Defender - Left-Back | Brazil Italy | São Paulo Futebol Clube | 2003 | €1.5m |
| 22 |  Yvan Dibango | Defender - Left-Back | Cameroon | Kryvbas Kryvyi Rig | 2002 | €1.5m |
| 23 |  Vanderlan | Defender - Left-Back | Brazil | Red Bull Bragantino | 2002 | €3.5m |
| 24 |  Owen Beck | Defender - Left-Back | Wales | Derby County | 2002 | €1.3m |
| 25 |  Fabio Ferraro | Defender - Left-Back | Belgium Italy | FCV Dender EH | 2002 | €1.3m |
| 26 |  Rahim Alhassane | Defender - Left-Back | Niger Spain | Real Oviedo | 2002 | €1.2m |
| 27 |  Haydon Roberts | Defender - Left-Back | England | Bristol City | 2002 | €1.2m |
| 28 |  Lasse Günther | Defender - Left-Back | Germany | SV 07 Elversberg | 2003 | €1.2m |
| 29 |  Vinícius Nogueira | Defender - Left-Back | Brazil Portugal | Vålerenga Fotball Elite | 2001 | €1.2m |
| 30 |  Omar Campos | Defender - Left-Back | Mexico | CD Cruz Azul | 2002 | €3.8m |