According to a report from Gianluca Di Marzio, Hertha is one of several clubs interested in Fortuna Sittard's 23-year-old Swiss and Cameroonian midfielder, Ryan Fosso. The report also identifies Empoli, Kaiserslautern, Borussia Mönchengladbach, and Lech Poznań as holding an interest in the player. Fosso's contract is valid until the end of the current season, but Fortuna Sittard has an option to extend it for another 12 months. A former Switzerland U21 international with 3 caps, Fosso joined his current club on July 1, 2024. According to Transfermarkt, his current market value is €2.00m.