Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 03/2021 |  | Juanjo Rubio | DF |  | CD Badajoz U19 | U19 |
| 02/2021 |  | Awudu | FW |  | CF Fuenlabrada | Fuenlabrada |
| 01/2021 |  | Pedro Martelo | FW |  | Paços de Ferreira | Ferreira |
| 01/2021 | | Miguel Núñez | DF |  | CF Badalona | CF Badalona |
| 01/2021 | | Miguel Narváez | GK | | CD Badajoz U19 | U19 |
| 12/2020 | | Sergio Chica | DF | |||
| 10/2020 | | Salvi | GK | |||
| 10/2020 | | Antonio Castaño | AS-CO | |||
| 10/2020 | | Fernando Estévez | MA | |||
| 10/2020 | | Isi Ros | FW |  | AD Alcorcón | Alcorcón |
| 09/2020 |  | Yeiber Murillo | FW |  | Sportivo Luqueño | Luqueño |
| 09/2020 | | Saldaña | GK | |||
| 09/2020 | | Barri | MF |  | Albacete | Albacete |
| 08/2020 | | Clemente | MF | |||
| 08/2020 | | Armenteros | DF |  | Real Madrid U19 | Real Madrid U19 |
| 08/2020 | | Antonio Otegui | MF |  | CA Osasuna | Osasuna |
| 08/2020 | | Alayeto | MF | |||
| 08/2020 | | Aitor Pascual | DF | |||
| 08/2020 | | Ernest Forgàs | FW | |||
| 08/2020 | | Dani Fernández | DF | | CF Fuenlabrada | Fuenlabrada |
| 08/2020 | | Tomás Sánchez | DF | |||
| 08/2020 | | Cedenilla | DF | |||
| 07/2020 | | Faysal Chouaib | FW |  | AE Prat | AE Prat |
| 07/2020 | | Arturo Segado | MF |  | Mérida AD | Mérida AD |
| 07/2020 | | Peter Kwabena | MF |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2021 | | Armenteros | DF |  | Real Oviedo B | Real Oviedo B |
| 01/2021 | | Barri | MF |  | RC Celta B | RC Celta B |
| 01/2021 | | Salvi | GK |  | Xerez CD | Xerez |
| 08/2020 | | Julio Gracia | MF |  | Getafe CF B | Getafe B |
| 08/2020 | | Sergio Tienza | GK |  | UD Montijo | UD Montijo |
| 08/2020 | | Juanjo Garrancho | GK |  | Real Sociedad B | Real Sociedad B |
| 08/2020 | | Toni Abad | DF |  | Cultural Leonesa | CD Leonesa |
| 08/2020 | | Steven | FW | | Real Oviedo B | Real Oviedo B |
| 07/2020 | | Chris Ramos | FW |  | Real Valladolid | Valladolid |
| 07/2020 | | Arturo Segado | MF |  | SD Leioa | Leioa |