Alongside RB Leipzig, FC Schalke, and TSG Hoffenheim, 1. FC Köln has also shown interest in 23-year-old Malmö FF player Otto Rosengren. The Rhineland club has entered the competition for the player and has made contact with his representatives. Middlesbrough FC is also particularly interested in signing the Swedish central midfielder, who has one cap for his country. With one and a half years left on his contract, Rosengren is expected to be sold this summer. Köln's interest is driven by the need to find a replacement after losing two players in central midfield. The player joined Malmö in July 2023 and has a market value of €3.00m, according to Transfermarkt. In the 2025/2026 Allsvenskan season, he has made 11 appearances, scoring one goal and providing three assists.