According to reporter Patrick Scherer, Leverkusen can only use a small part of the transfer income to sign.

Leverkusen has sold several players this summer, and the outside world may think that Leverkusen has a lot of available funds, but this is not the case. A considerable portion of the club's transfer revenue of more than 200 million euros flowed into the parent company due to a profit transfer agreement with Bayer Group.

This means that although sports director Rollfies is still able to operate in the transfer market, Leverkusen can actually only reinvest with a small portion of the transfer income.