Wolfsburg general manager Klaus Allofs has claimed that clubs from England and Italy are monitoring Julian Brandt.
The 17-year-old is yet to make his Bundesliga bow but has shone at youth level, allowing him to draw admiring glances from afar.
Those weighing up a possible approach are aware that the youngster is tied to a youth deal at present and will be free to move at the end of the season if he does not agree fresh terms, with a fee set at a tribunal.
Bayern Munich and Borussia Dortmund are said to have expressed an interest in acquiring Brandt's undoubted potential, but sides outside of Germany are also keen.
Allofs told BILD on the mounting speculation: "It's nothing new that clubs from England and Italy are wanting to sign Julian Brandt. He has received a good schooling at our club.
"We have already told him about his options and the chances he will get if he stays. But we cannot force him to sign on with us."
Meanwhile, another man waiting to discover if fresh terms will be agreed at Wolfsburg is Diego, with the Brazilian playmaker revealing that talks are yet to be opened despite advances from elsewhere being knocked back over the summer.
He told Wolfsburger Allgemeine Zeitung: "Back in the summer I received three concrete offers from other clubs, but they were dismissed.
"Up until now we haven't been talking about a new deal with Wolfsburg. Only the authorities of Wolfsburg know when we will pick up those talks.
"Wolfsburg are my first choice. I have been here a long time and I'm happy here.
"It is a fact, though, that other clubs are aware of my contract situation. I imagine interested clubs will start to get in touch from December.
"I am waiting for a decision from Wolfsburg and then we can sort out my future."