Real Sociedad are reportedly prepared to allow Haris Seferovic to depart the club this summer.
The 22-year-old, who is currently with the Switzerland squad at the World Cup, is highly rated at his Spanish club.
However, according to Marca, Sociedad would be prepared to part with the forward in order to free up funds to strengthen the squad.
Basel are believed to be interested in signing Seferovic on loan, with a view to a permanent deal next summer.