Wolves boss Gary O'Neil admits Craig Dawson could be facing surgery.
The defender was left on the bench for their 2-2 draw at Nottingham Forest.
O'Neil said: Daws was available for 10 minutes tops if we needed him. He might have surgery this week on a groin issue that's been causing him some problems.
He needs to go and see someone because he's not feeling comfortable at the moment.
He put himself up for the last two squads to try to help the group.
I don't know if it would be season-ending. It depends what comes back this week but I know he's really struggling.
He's playing through some pain, trying to train to help."