Real Madrid would need to agree a compensation package with the Belgian FA before opening negotiations for Coach Roberto Martinez.
The Spaniard has emerged as a leading candidate for the vacant post at Madrid following Julen Lopetegui’s dismissal by the club on Monday evening.
However, the former Wigan and Everton boss is under contract with Belgium – whom he guided to this summer’s World Cup semi-final – until the summer of 2020.
“If a club wanted to hire Mr. Martínez, he should first reach an agreement with the Federation,” a Belgian FA spokesperson Stefan Van Loock told press agency AFE.
“We do not comment on the contracts that the Federation has with its collaborators and that we consider as private matter.”