Union Berlin has made an offer to Galatasaray for Derrick Köhn, a 26-year-old German defender. Journalist Yagiz Sabuncuoglu indicated that an agreement between the clubs is already in place. The transfer fee is said to be five million Euros, with a resale participation of ten percent. 'Sky' mentioned a 20 percent resale participation, noting that only minor details remain to finalize the deal. Köhn, who had a previous loan spell at Werder Bremen, was also on the radar of 1. FC Köln before they chose Kristoffer Lund from Palermo FC instead. Köhn is currently contracted to Galatasaray until 2026, with a market value of €5 million as per Transfermarkt.