Borussia Monchengladbach chief Max Eberl has set his price to sell Jonas Hofmann.
Eberl told BILD: "We live in a time when nothing can be ruled out.
"But we certainly don't want to sell Jonas. If at some point a club says they are offering 40 million euros for Jonas, no club can say that I don't care."
Hofmann, 28, has a deal with Gladbach to 2023.