Ajax goalkeeper Jasper Cillessen is banking on Kenneth Vermeer leaving in the summer.
Vermeer has been linked with Aston Villa, Barcelona and Arsenal this season.
Cillessen's agent, Alex Kroes, said: "It is not inconceivable that Vermeer in the summer will be sold and Jasper could become the first goalkeeper.
"Kenneth plays a very good season and will also want to develop, I think."