Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2026 |  | Neil El Aynaoui | MF |  | AS Roma | AS Roma |
| 09/2026 |  | Marc Guiu | FW |  | Chelsea FC | Chelsea |
| 08/2026 |  | Christopher Nkunku | FW |  | AC Milan | AC Milan |
| 08/2026 |  | Ørjan Nyland | GK | |||
| 07/2026 | | Maxime Estève | DF |  | Burnley FC | Burnley |
| 07/2026 |  | Timo Schlieck | GK |  | SpVgg Greuther Fürth | Gr. Fürth |
| 07/2026 |  | Lutsharel Geertruida | DF |  | Sunderland AFC | Sunderland |
| 07/2026 | | Abdoul Koné | DF |  | Stade de Reims | Stade Reims |
| 07/2026 |  | Eljif Elmas | MF |  | SSC Napoli | Napoli |
| 07/2026 |  | Joyeux Masanka Bungi | MF |  | New York RB | New York RB |
| 07/2026 | | Rocco Reitz | MF |  | Bor. Mönchengladbach | M'gladbach |
| 07/2026 | | Arthur Vermeeren | MF |  | Olympique de Marseille | Marseille |
| 07/2026 | | Robert Ramšak | FW |  | SV Sandhausen | Sandhausen |
| 07/2026 |  | Martín Demichelis | MA |  | RCD Mallorca | Mallorca |
| 07/2026 | | Stefan Buck | AS-CO | |||
| 07/2026 | | Cristian Fiél | AS-CO | |||
| 07/2026 | | Mariano Pino | AS-CO |  | CF Monterrey | CF Monterrey |
| 07/2026 | | Marcel Abanoz | RE-C | |||
| 07/2026 | | Ole Bernhardt | G-AN |  | RB Leipzig U19 | RB Leipzig U19 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2026 |  | Suleman Sani | FW |  | Al Qadsiah | Al Qadsiah |
| 09/2026 | | Arthur Vermeeren | MF |  | Royal Antwerp FC | Antwerpen |
| 09/2026 | | El Chadaïlle Bitshiabu | DF |  | Galatasaray | Galatasaray |
| 09/2026 | | Joyeux Masanka Bungi | MF |  | VfB Stuttgart II | VfB II |
| 09/2026 | | Ayodele Thomas | FW |  | N.E.C. | N.E.C. |
| 08/2026 | | Eljif Elmas | MF |  | Atalanta | Atalanta |
| 08/2026 | | Lutsharel Geertruida | DF |  | PSV Eindhoven | PSV Eindhoven |
| 08/2026 | | Robert Ramšak | FW |  | NK Aluminij | NK Aluminij |
| 08/2026 |  | Yan Diomande | FW |  | Real Madrid | Real Madrid |
| 08/2026 |  | Péter Gulácsi | GK |  | Villarreal CF | Villarreal |
| 07/2026 | | Timo Schlieck | GK |  | SC Verl | Verl |
| 07/2026 |  | Kosta Nedeljković | DF |  | Aston Villa | Aston Villa |