Timo Werner has been told to make a decision over his future.
Germany striker Werner has had a contract offer on the table from RB Leipzig since January, with the club still hopeful that he will extend his deal.
However, Werner, 22, is ready to run down his contract, which has just 11 months left to run, and leave on a lucrative free transfer next summer.
However, RBL, who have previously threatened to dump him in their reserves next term, want a definitive answer now.
If he continues to refuse, then they will push to sell the player before the opening of the Bundesliga season on August 18.
"We do not want to set an ultimatum, but eventually we need a decision,” declared CEO Oliver Mintzlaff on Friday, speaking in Austria.
"It is desirable that we have a solution before the league starts. We can and want to meet this timing.
"We are in constructive and good talks, which will lead to a result. We have submitted a contract offer to Timo and his consultant, we stand by that and we do not have to improve it.
"It is legitimate for a young international to think about his future. But it is also legitimate that the club wants to extend this quality to players. Or that we just want to sell it."
Werner, previously linked with Liverpool , has been interested in a move to Bayern Munich.
But Bayern have prioritised a move for a new winger, following the exits of veteran duo Franck Ribery and Arjen Robben, meaning an offer hasn’t been forthcoming; they would prefer to sign him on a free transfer in 2020.
As such, RBL have not received any offers to take Werner now, a situation which doesn’t help the club as they seek to land market value for a player rated as one of Europe’s best young strikers.
"As a club, of course, we want to have the action in our hands.
"But we are in the situation where the contract of a player expires. That's not a unique situation in the Bundesliga.
"The topic of Werner has occupied the media more than we ourselves. But, of course, we will eventually need a decision."
One potential landing spot for Werner is Paris Saint-Germain under Thomas Tuchel, should Neymar leave for Barcelona .
Another could be Manchester United , depending on whether Romelu Lukaku moves to Inter Milan.