Dortmund have ruled out Pierre-Emerick Aubameyang leaving the club in the summer, insisting that their transfer window is closed.
Aubameyang was the top scorer in the Bundesliga in the 2016-17 campaign, scoring an incredible 31 goals in 32 games to see off competition from Robert Lewandowski.
And it appears the Gabon international is going to be staying put, with the club's sporting director Michael Zorc revealing that time has run out for any interested parties.
He told Goal on Tuesday: "It's quite simple. We opened this window for a certain time frame to realise if the transfer [could be done].
"But we have to put a time limit on the transfer because if he has to leave, we have to replace him. Then it gets difficult the longer the transfer window goes on. That's more or less the reason to finish it now.
When asked if the club would consider a sale if a crazy offer came in, Zorc added: "The deadline is over. No [the club wouldn't consider a mega offer], we are going to plan with him for the new season and our intentions are the same."
Aubameyang scored twice as he featured from the start in Dortmund's 3-1 International Champions Cup victory over Milan.
Head coach Peter Bosz also discussed the forward's future following the win over the Serie A side, insisting that he is remaining cautious until the transfer window has officially closed.
He told reporters: "I am really glad he's in my squad. And while he's here I will use him and everyone can see why today.
"I am really happy that he's here. But in modern football, only at the end of August can we be sure [that he will stay]. He's a fantastic guy and a fantastic player."