| Fecha | Jugador | Llega a | Tipo | Precio |
|---|---|---|---|---|
| 1 jul 2021 | Răzvan Marin | Cagliari Calcio | € 10M | €10.0M |
| 1 jul 2021 | Rabby Nzingoula | US Orléans U17 | Fichaje | Sin coste |
| 1 jul 2021 | Lamare Bogarde | Aston Villa U23 | Fichaje | — |
| 1 jul 2021 | Ramon Hendriks | Feyenoord | N/A | N/A |
| 1 jul 2021 | Gaizka Alboniga-Menor | Athletic Juv. B | Fichaje | — |
| 1 jul 2021 | Víctor Barberá | Barça Juv A | Fichaje | — |
| 1 jul 2021 | Marvin Elimbi | Racing Strasbourg B | Fichaje | — |
| 1 jul 2021 | Sankhoun Diawara | ESTAC Troyes U17 | Fichaje | — |
| 1 jul 2021 | Álex Valle | FC Barcelona U19 | Fichaje | — |
| 1 jul 2021 | Yvann Titi | ESTAC Troyes U17 | Fichaje | — |
| 1 jul 2021 | Diego Espejo de la Concepción | Atlético Madrileño | Fichaje | — |
| 1 jul 2021 | Gil Martins | FC Porto U17 | Fichaje | — |
| 1 jul 2021 | Nicholas Opoku | Amiens SC | Fichaje | — |
| 1 jul 2021 | Zach Abbott | Nottingham Forest U18 | Fichaje | Sin coste |
| 1 jul 2021 | Ugo Raghouber | LOSC Lille B | Fichaje | — |
| 1 jul 2021 | Dame Gueye | RC Grasse | Fichaje | — |
| 1 jul 2021 | Juanma Herzog | UD Las Palmas U19 | Fichaje | — |
| 1 jul 2021 | José Mateo Mejía Piedrahita | Man Utd U23 | Fichaje | — |
| 1 jul 2021 | Guillaume Restes | Toulouse FC U19 | Fichaje | — |
| 1 jul 2021 | Matías Barboza Van Hoec | Atlético Malagueño | Fichaje | — |
| 1 jul 2021 | Gonçalo Nogueira | Vitória de Guimarães SC U23 (- 2022) | Fichaje | — |
| 1 jul 2021 | Patson Daka | Leicester City | € 26.7M | €26.7M |
| 1 jul 2021 | Colin Coosemans | RSC Anderlecht | Fichaje | Sin coste |
| 1 jul 2021 | Yannick Cappelle | Jong Essevee | Fichaje | Sin coste |
| 1 jul 2021 | Massimo Pessina | Bolonia Fútb. b | Fichaje | — |
| 1 jul 2021 | Freddy Mbemba | Jeanne d'Arc de Drancy | Fichaje | Sin coste |
| 1 jul 2021 | Raphael Pesu | FC Blau-Weiss Linz Youth | Fichaje | Sin coste |
| 1 jul 2021 | Lautaro Valenti | Parma Calcio 1913 | Fichaje | €10.5M |
| 1 jul 2021 | Mateja Stjepanović | FK Partizan Belgrade U19 | Fichaje | — |
| 1 jul 2021 | Rafael Nicolás Llorente Sanz | Real Madrid Castilla | Fichaje | — |
| 1 jul 2021 | James Wright | Aston Villa U18 | Fichaje | — |
| 1 jul 2021 | Nikola Sarcevic | AKA Rapid Wien U16 | Fichaje | Sin coste |
| 1 jul 2021 | Dan Sinaté | AS Monaco U17 | Fichaje | — |
| 1 jul 2021 | Giorgi Mamardashvili | Valencia CF | Cesión | €200k |
| 1 jul 2021 | Zak Lovelace | Millwall FC U18 | Fichaje | Sin coste |
| 1 jul 2021 | Arthur Vermeeren | Royal Antwerp FC U18 | Fichaje | Sin coste |
| 1 jul 2021 | Alejandro Garnacho | Manchester United U21 | Fichaje | — |
| 1 jul 2021 | Malo Gusto | Olympique Lyonnais | Fichaje | — |
| 1 jul 2021 | Robbie Ure | Rangers II | Fichaje | — |
| 1 jul 2021 | Ethan Ross | Sin equipo | Fichaje | — |