According to reporter Skira, Fleken and Leverkusen reached a personal agreement.
On personal social media, Skira wrote: Fleken has reached a personal agreement with Leverkusen, and the contract is valid until 2028, and Leverkusen is close to signing him from Brentford for 14 million euros.
Fleken is 31 years old and a Dutch goalkeeper. He joined Brentford from Freiburg in 2023. He played in 37 Premier League games this season, and the German turnover is 10 million euros.