Wales wing Shane Williams has confirmed he will retire from international rugby after the Test against Australia at the Millennium Stadium in December. Speculation had been circling Williams, who has 86 caps to his name, would call it a day following Wales' impressive display at the World Cup. But the 34-year-old said it would be a "dream" to take his final bow in front of the Wales fans. "I've decided I am going to make myself available for this game. If selected, I want to play," Williams told www.walesonline.co.uk. "If I am picked I will treat it in the same way I have always treated Wales games, but it will be a sad day for me. In fact, I'll be devastated. "But to bow out in front of Welsh fans and my family and friends would be like a dream." Williams will continue to play for Ospreys after calling an end to his international career. He said: "I always said I would know in myself when the time came to stop playing for Wales and that time is very nearly upon me. "After this last game in December, that's definitely it for me, there'll be no changing my mind." Williams is a former IRB world player of the year and his country's record try-scorer. December's game will be a rematch of the third-place play-off at the World Cup in New Zealand, which Australia won.