Wolves midfielder Adlene Guedioura could be out for up to six months after fracturing his tibia in Sunday's Barclays Premier League defeat to Aston Villa.
The Algerian sustained the injury in the closing stages of the 2-1 loss following a challenge from Villa midfielder Steve Sidwell.
"It's desperately disappointing news both for Adlene and the club," said Wolves boss Mick McCarthy.
Guedioura was carried off on a stretcher and further assessment this morning has revealed the severity of the injury with the club expecting him to be out of action for between four and six months.
"It is going to be a lengthy absence but on the plus side the consultant has told us it's an uncomplicated fracture," Steve Kemp, Head of Wolves' medical department, told the club's official website.
"In these situations that's as good as it gets. Adlene will be in a full leg non weight-bearing cast for four weeks before progressing to a partial weight-bearing cast after that."