West Ham United has been linked with Jonathan Burkardt and would prefer to sign him as soon as January. However, Mainz 05's sports director, Christian Heidel, has ruled out a winter transfer, stating that Burkardt will definitely not leave the club in the winter, regardless of any offers.

Jonathan Burkardt, a German national player and striker for Mainz 05, is reportedly a potential winter signing for West Ham United. The interest is reportedly coming from West Ham's German sports director Tim Steidten. Despite his importance to Mainz 05, there is speculation about his potential transfer due to his impressive goal-scoring record. Burkardt's contract with Mainz is valid until 2027, suggesting a significant transfer fee if a deal is struck.