Timo Werner's new deal with RB Leipzig still leaves them vulnerable to losing the striker.
The Germany international has signed a new deal to 2023 amid long-term interest from Bayern Munich and Liverpool.
However, BILD says Werner's contract also carries an affordable buyout clause - which falls year upon year.
The deal's current clause is set at 60m. However, from year to year the sum will fall.
Werner's salary was also adjusted, the striker is now on 7m-a-season.
