While the overall financial package was undeniably lucrative, the proposed deal’s structure ultimately led to the collapse of negotiations. The initial transfer fee offered by Dortmund was reportedly around €46 million.
With the inclusion of various performance-related bonuses, the total package would have slightly exceeded Cologne’s €50 million valuation, reaching an estimated €52 million to €53 million. However, Cologne remained completely unsatisfied with the stringent conditions attached to these potential bonuses.
The proposed bonuses were structured over a particularly extended period. Furthermore, they were heavily contingent on the player achieving a high number of first-team appearances, meaning Cologne lacked any genuine financial guarantees.