Schalke management accept Max Meyer is preparing to leave this summer.
Off contract, Meyer has scored 22 goals in 189 appearances for Schalke and has been heavily linked with a move to the Premier League.
And Schalke's sporting director Christian Heidel has confirmed that Meyer is 'exploring the market'.
He told RevierSport: "It is clear that Max and his advisors are exploring the market. And we're not doing anything different."