Additions
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2019 |  | Diego Rolán | FW |  | CD Alavés | Alavés |
| 01/2019 |  | Raúl Carnero | DF |  | Girona FC | Girona |
| 01/2019 | | Dani Ojeda | FW |  | Granada CF | Granada CF |
| 08/2018 |  | Gabriel Pires | MF |  | SL Benfica | Benfica |
| 08/2018 |  | Facundo García | MF |  | AEK Larnaca | AEK Larnaca |
| 08/2018 |  | Mamadou Koné | FW |  | Málaga CF | Málaga |
| 07/2018 |  | Josua Mejías | DF |  | Gimnàstic de Tarragona | Nàstic |
| 07/2018 | | Tito | DF |  | Rayo Vallecano | Rayo |
| 07/2018 | | Diego Rico | DF |  | AFC Bournemouth | Bournemouth |
| 07/2018 |  | Owusu Kwabena | FW |  | Salamanca CF UDS | Salamanca |
| 07/2018 | | Fede Vico | MF | | Granada CF | Granada CF |
| 07/2018 | | Joseba Zaldua | DF |  | Real Sociedad | Real Sociedad |
| 07/2018 | | Martín Mantovani | DF |  | UD Las Palmas | UD Las Palmas |
| 07/2018 |  | Yahya Al Shehri | MF |  | Al Nassr | Al Nassr |
| 07/2018 |  | Darko Brašanac | MF |  | Real Betis | Betis |
| 07/2018 |  | Nordin Amrabat | FW |  | Watford FC | Watford |
| 07/2018 |  | Claudio Beauvue | FW |  | Celta de Vigo | Celta de Vigo |
| 07/2018 | | Guerrero | FW |  | Olympiacos FC | Olympiacos FC |
| 07/2018 | | Naranjo | FW |  | KRC Genk | KRC Genk |
| 07/2018 | | Asier Garitano | MA | | Real Sociedad | Real Sociedad |