“Andre Wisdom has been the victim of an unprovoked assault and robbery,” stated a press release from Derby.
“He sustained accidents which resulted in him being admitted to hospital, the place he’s in a secure situation.
“Merseyside Police are investigating and the membership will focus its efforts on supporting Andre and his household.”
Merseyside Police didn’t instantly reply to CNN Sport’s request for remark.
Wisdom performed in Derby’s 2-1 victory in opposition to Reading on Saturday.
He signed for the membership from Liverpool after a collection of mortgage spells and has made 20 appearances to date this season.
Derby has an out of doors probability of creating the Championship playoffs because the membership seeks promotion to the English Premier League.