Alongside 1. FC Köln, Werder Bremen also showed interest in 24-year-old French PSV defender Kiliann Sildillia. Werder Bremen reportedly attempted to sign him on a loan basis, a deal the Eindhoven club did not accept. Werder Bremen is not expected to make a purchase offer, and no significant purchase bid has been made from Cologne, which suggests Sildillia is set to remain at his current club. Sildillia joined PSV in July 2025 and is under contract until 2030. The defender has 5 caps for the France U23 team and has a current market value of €7.00m, according to Transfermarkt.