The Frenchman is out with a hand injury and will be replaced by Serbian keeper Vlada Avramov.
“Frey is unavailable after suffering a sprain to the metacarpophalangeal joint of his index finger during Fiorentina-Catania,” reads a statement on the club’s official website.
“Scans have ruled out any serious problems, though the persistence of pain prevents the athlete from performing properly. Physiotherapeutic treatment is already underway in order to get him to recover for the next league game.”