RB Leipzig chief Oliver Mintzlaff has opened the door to a potential Dayot Upamecano exit as Manchester United and Liverpool circle.
The French centre-half has been a star performer for the Bundesliga outfit.
An outstanding display in last season's Champions League quarter final win over Atletico Madrid really grabbed the attention of Europe's elite.
And the Leipzig CEO admits that the German club will always listen to offers if they feel the money is right.
United are in the market for a centre-half while Liverpool have their own problems at the heart of defence.
Leipzig have shown they are prepared to move their top players on for the right price having sold Timo Werner to Chelsea.
Mintzlaff told SportBild: "We have a squad that is very broad in terms of quality.
"So we will sell top performers again if it makes financial sense and we can cope with it from a sporting point of view.
"When I think of Werner, [Matheus] Cunha, [Naby] Keita or [Diego] Demme, we’ve already made a lot of money and still made progress in terms of the sporting side.
"Overall, we have invested a lot in our team, no question about that. But look: the current squad had a market value of less than €250 million when the individual players made their debut.
"And if we now take the current market value, we are at around €550 million. You have to take this plus of over €300 million into account when you talk about investments. We are creating value with our path."
Upamecano is unlikely to move in January with a summer exit touted.
Before that though the defender and Leipzig have been handed a European tie with Liverpool.
Julian Nagelsmann's side are also in the midst of a Bundesliga title battle with giants Bayern Munich.
