The German supremo has expressed with hope that the midfielder remains with the Signal Iduna Park outfit but is ready for anything.
To compound matters, the future of star attacker Marco Reus continues to be speculated in the press, with Manchester United linked with the Germany international consistently and Chelsea also believed to be weighing up a bid for the winger.
Given Reus' star performances for club and country over the last two years, it makes sense that some of Europe's top clubs are being linked with the playmaker - especially if reports that he has a release clause in his existing contract are to be believed.
Dortmund CEO Hans-Joachim Watzke has admitted that the player’s future is up in the air and that if he opts to leave then it will be a decision the club all have to deal with.
"I can understand Marco. He first wants to play again and then he wants to see which direction to take," Watzke told Eurosport.
"I have a legitimate hope that he will stay for the long term. If not it is something we will have to accept.”
Reus is currently on the sidelines with injury but has scored three goals in seven Bundesliga games for Jurgen Klopp’s men this term.
The former Borussia Monchengladbach man also missed Germany’s successful World Cup campaign in the summer due to injury.
Dortmund have suffered the loss of top players recently, with both Robert Lewandowski and Mario Gotze opting to switch to domestic rivals Bayern Munich.