Colombia midfielder Carlos Sanchez will be free to leave Elche this summer for as little as £4m.
The 28-year-old has been one of his country's star players at the World Cup this summer, with his performances drawing a host of speculation.
While Elche are not keen on losing the midfielder, according to Inside Spanish Football, Sanchez's release clause stands at just £4m.
Sanchez made 30 league appearances for his Spanish club last season.
A number of European clubs are believed to be monitoring proceedings.
