Ajax sporting director Marc Overmars has insisted that the club will not be selling goalkeeper Jasper Cillessen during this summer's transfer window.
The Dutch international has been linked with a move to Manchester United should David de Gea complete his expected transfer to Real Madrid.
"Jasper is not for sale, not even for €25m (£17.8m)," Overmars is quoted as saying by The Mirror.
Cillessen has won three Eredivisie titles with Ajax, and helped the Netherlands to a third-placed finish at last summer's World Cup under now-United manager Louis van Gaal.