Second division team Schalke 04 is interested in Czech Republic international Ondřej Zmrzlý from Slavia Prague as a potential signing on the last day of the transfer window. Schalke is seeking a left-back due to an injury to Vitalie Becker. The 26-year-old is regarded as an alternative to Adil Aouchiche, whose transfer is considered complicated as he is currently on loan to FC Aberdeen from AFC Sunderland. Sigma Olmütz, Gornik Zabrze, and Holstein Kiel are other clubs reportedly interested in Zmrzlý. Zmrzlý, who has two international caps, has a contract with Slavia Prague that runs until June 2027, and his current market value on Transfermarkt is €1.50m. In the 2025/2026 season, he has made 11 Chance Liga appearances, contributing one goal and one assist. An offer from Holstein Kiel in January 2026 was reported, and it was said to be for more than €1.0 million.