According to Bild, Sven Mislintat attempted to convince Florian Kastenmeier to stay as an anchor player.

Florian Kastenmeier, a 28-year-old German goalkeeper, has been given a concrete contract offer by Fortuna Düsseldorf, whom he joined in July 2019. Retaining Kastenmeier is the highest priority for the club's management. It is reported that Kastenmeier is expected to accept a salary reduction of about 20 percent. His current Transfermarkt market value is €1.20m, and he has been linked with SV Werder Bremen.