McCarthy has made it clear he wants to sign the Scotland international who is looking to rebuild his career after suffering a cruciate ligament injury 13 months ago.

McFadden parted company with Birmingham during the summer after the Carling Cup holders did not take up an option on his contract.

But he has impressed during training with Wolves this week and McCarthy hopes a deal can be thrashed out for the 28-year-old.

McCarthy said: "I sincerely hope there are going to be some developments with McFadden. He has looked fine this week with us, I want to sign him.

"When will that happen and how far down the road we are, I don't know.

"But he is a talented lad and a good character and has fitted in really well.

"He has enjoyed it, at least I think he has, and he will be a great addition to our squad, definitely.

"I get the feeling from him that he wants to come here and I hope that is the case. If we can do something, then we will."

McCarthy was unhappy with Wolves' performance in last weekend's 3-0 home reversal by QPR although a much changed line-up then thrashed Millwall 5-0 in a midweek Carling Cup tie.

He said: "Only (goalkeeper) Wayne Hennessey was solid against QPR. Do I ever get that from a team of mine where 10 of them are under par? No, or at least, it very rarely happens.

"When it does, the players are so diligent about how they do their jobs and they want to repair that.

"The only way to get it out of your system is by coming back and playing well the way we did in the previous four league games."