Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2018 |  | Santamaría | GK |  | CF Reus Deportiu | Reus Deportiu |
| 01/2018 | | Moi Gómez | MF |  | Sporting Gijón | Sporting Gijón |
| 01/2018 | | Gabi Lorente | MF | |||
| 09/2017 | | Sergio Sánchez | FW |  | Real Madrid C | Real Madrid C |
| 08/2017 |  | Chimy Ávila | FW |  | San Lorenzo | CASL |
| 07/2017 | | Ezequiel Rescaldani | FW | |||
| 07/2017 | | Bardají | GK |  | Real Sociedad | Real Sociedad |
| 07/2017 | | Remiro | GK |  | Athletic Club | Athletic |
| 07/2017 | | Luso | MF | |||
| 07/2017 | | Álex Gallar | FW | |||
| 07/2017 | | Valera | GK | |||
| 07/2017 |  | Cucho Hernández | FW |  | Watford FC | Watford |
| 07/2017 | | Jorge Pulido | DF |  | Sint-Truidense VV | STVV |
| 07/2017 | | Rulo | DF | |||
| 07/2017 | | Óscar López | GK |  | AD Almudévar | AD Almudévar |
| 07/2017 |  | Agus Alonso | FW |  | CF Badalona | CF Badalona |
| 07/2017 | | Rubi | MA | | Sporting Gijón | Sporting Gijón |
| 07/2017 | | Jaume Torras | AS-CO | | Sporting Gijón | Sporting Gijón |
| 07/2017 | | Xabi Gil | AT-C |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2017 | | Javi Jiménez | GK |  | Tromsø IL | Tromsø |
| 07/2017 | | Samu Sáiz | FW |  | Leeds United | Leeds Utd |
| 07/2017 | | Sergio Herrera | GK |  | CA Osasuna | Osasuna |
| 07/2017 |  | Franck Bambock | MF |  | Sparta Rotterdam | Sp. Rotterdam |
| 07/2017 | | David López | MF |  | UCAM Murcia CF | UCAM Murcia |
| 07/2017 |  | Vinícius Araújo | FW |  | Valencia CF | Valencia |
| 07/2017 | | Anquela | MA |  | Real Oviedo | Oviedo |
| 07/2017 | | Juan José Carretero | AS-CO | | Real Oviedo | Oviedo |