The 25-year-old has been strongly linked with the likes of Arsenal, Liverpool and Tottenham.
A Bola reports that Sporting Lisbon are looking to get Capel’s wages off their books in January as he remains one of the highest earners at the club.
Sporting Lisbon are reportedly prepared to let Capel leave for around £6million.
Liverpool reportedly had a £3million bid for Capel rejected in the summer transfer window.
French giants Marseille are also reportedly keeping tabs on the Spanish international’s situation.
