Shane Williams has warned Wales they will face "a far better" Australian side on Saturday than the one that beat them in last year's World Cup.

The Wallabies won 32-20 at the Millennium Stadium 14 months ago, only to lose to England in the quarter-finals.

But Australia's form on this European tour - they have beaten Italy, England and France - has impressed Wales wing Williams, the newly-crowned International Rugby Board player of the year.

"They are a massive threat," said Williams. "They have one of the deadliest attacking back lines in world rugby.

"Stirling Mortlock is probably playing the best rugby of his life at the moment and Matt Giteau is one of the form No10s in the world.

"They are a far better side than they were at the World Cup."

The Wales team will be revealed later today, with one change guaranteed following the season-ending knee injury suffered by lock Ian Evans against New Zealand.