Werder Bremen sports director Frank Baumann admits no offers have yet arrived for Milot Rashica.
The Kosovo striker is a target for Liverpool, while Aston Villa and Wolves are also keen.
But Baumann revealed, "So far, no club has approached us with a specific offer that we could then deal with.
"But it is the case that players like Milot are of course wanted by other clubs - including very interesting clubs that will play in the Champions League - on the slip of paper.
"We know this. But even these clubs currently have to put the brakes on a bit. That's why it is definitely not a timely decision."