| Fecha | Jugador | Llega a | Tipo | Precio |
|---|---|---|---|---|
| 1 jul 2021 | Abu Kamara | Norwich City U21 | Fichaje | Sin coste |
| 1 jul 2021 | Soungoutou Magassa | Monaco B | Fichaje | — |
| 1 jul 2021 | Nico O'Reilly | Manchester City U18 | Fichaje | — |
| 1 jul 2021 | Afonso Moreira | Sporting CP U19 | Fichaje | — |
| 1 jul 2021 | Noé Lebreton | SM Caen B | Fichaje | — |
| 1 jul 2021 | Antonio David | Real Madrid U17 | Fichaje | — |
| 1 jul 2021 | Antonios Papadopoulos | Borussia Dortmund II | Fichaje | Sin coste |
| 1 jul 2021 | Giacomo Satalino | US Sassuolo | N/A | N/A |
| 1 jul 2021 | Pedro Pacheco | Mafra | Free | Free |
| 1 jul 2021 | Deji Elerewe | Charlton Athletic | Fichaje | Sin coste |
| 1 jul 2021 | Rayane Belaid | Atlético Juv. B | Fichaje | — |
| 1 jul 2021 | Jesper Daland | Círculo de Brujas | Fichaje | €1.0M |
| 1 jul 2021 | Gabriël Reiziger | Ajax U17 | Fichaje | — |
| 1 jul 2021 | Jordan James | Birmingham City | Fichaje | Sin coste |
| 1 jul 2021 | Sacha Delaye | Montpellier HSC | Fichaje | Sin coste |
| 1 jul 2021 | Rafa Rodríguez | Málaga Juv. A | Fichaje | — |
| 1 jul 2021 | Nicola Leali | Ascoli Calcio | Fichaje | — |
| 1 jul 2021 | Kevin Kers | NEC U17 | Fichaje | — |
| 1 jul 2021 | Costinha | FC Arouca U15 | Fichaje | — |
| 1 jul 2021 | Morgan Costarelli | LOSC Lille U17 | Fichaje | — |
| 1 jul 2021 | Juan David Fuentes Garrido | Barça Juv. A | Fichaje | — |
| 1 jul 2021 | Richie Sagrado | Oud-Heverlee Leuven | Fichaje | — |
| 1 jul 2021 | Charlie Reilly | Albion Rovers | Fichaje | — |
| 1 jul 2021 | Dani Pérez | Real Betis Balompié U19 | Fichaje | — |
| 1 jul 2021 | Demir Xhemalija | FC Basel 1893 U16 | Fichaje | Sin coste |
| 1 jul 2021 | Adri Suárez | Roda Juvenil A | Fichaje | — |
| 1 jul 2021 | Diego Méndez Molero | Rayo Vallecano B | Fichaje | — |
| 1 jul 2021 | Kevin Wimmer | Rapid Vienna | Free | Free |
| 1 jul 2021 | Aleksa Puric | Teleoptik | Cesión | — |
| 1 jul 2021 | Iñigo Vicente | CD Mirandés | Cesión | — |
| 1 jul 2021 | Kyle Joseph | Swansea City | Fichaje | €580k |
| 1 jul 2021 | Kiko | SL Benfica U23 | Fichaje | — |
| 1 jul 2021 | Rayan Stoll | FC Sion U16 | Fichaje | Sin coste |
| 1 jul 2021 | Ayanda Sishuba | RC Lens U19 | Fichaje | — |
| 1 jul 2021 | Kamil Grabara | FC Copenhagen | Fichaje | — |
| 1 jul 2021 | Danilo Veiga | FC Felgueiras 1932 | Fichaje | — |
| 1 jul 2021 | Ethan Amundsen-Day | FC Copenhagen U19 | Fichaje | €300k |
| 1 jul 2021 | Davide Renzetti | SS Lazio U17 | Fichaje | — |
| 1 jul 2021 | Calvin Miller | FC Chesterfield | Fichaje | Sin coste |
| 1 jul 2021 | Tom Rothe | Borussia Dortmund U19 | N/A | N/A |