| Fecha | Jugador | Llega a | Tipo | Precio |
|---|---|---|---|---|
| 1 jul 2021 | Juan Sebastián | RZ Deportivo Aragón | Fichaje | — |
| 1 jul 2021 | Louis Mouton | Saint-Étienne B | Fichaje | — |
| 1 jul 2021 | Hugo López | Roda Fút. base | Fichaje | — |
| 1 jul 2021 | James Abankwah | St. Patrick's Athletic | Fichaje | — |
| 1 jul 2021 | Bruno Iribarne | R. Madrid Juv.B | Fichaje | — |
| 1 jul 2021 | Josko Gvardiol | RB Leipzig | Fichaje | €36.8M |
| 1 jul 2021 | David Raum | TSG 1899 Hoffenheim | Free | Free |
| 1 jul 2021 | Samuel Kozlovsky | AS Trencin | N/A | N/A |
| 1 jul 2021 | Sacha Boey | Stade Rennais FC | N/A | N/A |
| 1 jul 2021 | Luís Silva | Varzim | Free | Free |
| 1 jul 2021 | Lee Nicholls | Huddersfield Town | Fichaje | Sin coste |
| 1 jul 2021 | Soufiane Messeguem | FC Erzgebirge Aue | Fichaje | — |
| 1 jul 2021 | Morgan Bokele Mputu | FC Metz U19 | Fichaje | — |
| 1 jul 2021 | Alexis Olmedo | FC Barcelona U16 | Fichaje | — |
| 1 jul 2021 | Martín Tejón | Valencia CF U19 | Fichaje | — |
| 1 jul 2021 | Marc Gutbub | FC Thun U21 | Fichaje | Sin coste |
| 1 jul 2021 | Alberto Espiñeira Bozada | Sevilla Juv. B | Fichaje | — |
| 1 jul 2021 | Andrin Hunziker | FC Basilea | Fichaje | Sin coste |
| 1 jul 2021 | Lennard Hartjes | Feyenoord | Fichaje | — |
| 1 jul 2021 | Lanroy Machine | Metz U17 | Fichaje | — |
| 1 jul 2021 | Maik Nawrocki | Legia de Varsovia | Cesión | — |
| 1 jul 2021 | Mekhi Gray | 1.FC Union Berlin Youth | Fichaje | — |
| 1 jul 2021 | Nidal Celik | Sarajevo U17 | Fichaje | — |
| 1 jul 2021 | Chupe | San Félix Juv.A | Fichaje | — |
| 1 jul 2021 | Etienne Eto'o | Sin equipo | Fichaje | Sin coste |
| 1 jul 2021 | Sven Ulreich | Bayern Múnich | Free | Free |
| 1 jul 2021 | Léo Paul Bouyer | Paris FC Youth | Fichaje | — |
| 1 jul 2021 | Martin Adeline | Reims Révélations | Fichaje | — |
| 1 jul 2021 | Adrian Barisic | NK Osijek | Fichaje | — |
| 1 jul 2021 | Nicolas Kühn | FC Erzgebirge Aue | Cesión | — |
| 1 jul 2021 | Théo Radelet | Oud-Heverlee Leuven Youth | Fichaje | Sin coste |
| 1 jul 2021 | Gianluca Caprari | Hellas Verona | Cesión | — |
| 1 jul 2021 | Aidan Denholm | Hearts FC II | Fichaje | — |
| 1 jul 2021 | Nicolas Bajlicz | 1.FC Köln U19 | Fichaje | Sin coste |
| 1 jul 2021 | Will Lankshear | Sheffield United U18 | Fichaje | Sin coste |
| 1 jul 2021 | Pablo Barrios | Atlético Juv. A | Fichaje | — |
| 1 jul 2021 | Toluwalase Emmanuel Arokodare | Amiens SC | Cesión | — |
| 1 jul 2021 | José Luis Català | Espanyol Barcelona U19 | Fichaje | — |
| 1 jul 2021 | José Carlos León Amate | Betis Juvenil A | Fichaje | — |
| 1 jul 2021 | Massimo Pessina | Bologna Youth | Fichaje | — |