David Jones has been ruled out for two months after undergoing knee surgery Wolves manager Mick McCarthy has revealed.
The midfielder felt pain in the knee against his former club Manchester United in the Carling Cup last week but dismissed the problem as a bit of swelling.
When the problem failed to clear up in training ahead of the trip to Sunderland the 24-year-old went for a scan and his worst fears were revealed.
The former England Under 21 has now had surgery to correct the knee and is not due to be back in action until December at the earliest.
"Jones has had a clean-up operation in his knee and will be out for two months," McCarthy said.
"He felt it against Manchester United and thought it was just a bit of swelling. He tried to train in the build-up to the Sunderland game but it wasn't right.
"He had a scan and has had the surgery on the knee."
Jones has featured just once in the Premier League so far this season, when he came off the bench against Wigan, despite turning out on a regular basis in the Championship last year.