Wallaby hooker Stephen Moore says they are well-aware of the physical challenge the Springboks present, but they are confident of stepping up to the challenge during their Tri-Nations clash at Newlands next Saturday.

A refreshed Wallabies squad arrived in South Africa at the weekend, following their defeat in their opening Tri-Nations Test against the All Blacks in Auckland three weeks ago. They will face the Boks at Newlands on Saturday, in what Moore believes will be "a very physical" encounter.

The South Africans' physicality was evident as they swept aside the All Blacks' challenge to claim two valuable Tri-Nations victories on home soil.

"We know what to expect from the Boks," Moore told iafricacom from the team's base in Cape Town.

"The physical side of the match is going to be crucial as we've seen over the past two weeks.

"It's something that we are going to have to be ready for and I think we are ready. We've also been working very hard at our game in that area [physicality]."

The Wallaby pack has often been labelled as the soft underbelly in the past, but under coach Robbie Deans they have added a physical edge to their arsenal.

However, Moore and company will be at the coalface when they take on arguably the best set of forwards in the world next week.

He believes Victor Matfield will be one of the key men among the heavies and he added that the Bok line-out kingpin poses a huge threat at line-out time.

"He's [Matfield] been dominant in the line-outs for a number of years and we're well aware of the threat," Moore explained.

"We've been pretty happy with the way our line-outs has functioned this year and we just need to focus on our own accuracy and precision next Saturday.[But] I'm confident we'll be able to get the result."

Newlands hasn't been a happy hunting ground for the Wallabies, having last won a Test in Cape Town in 1992. The Australians also came tantalisingly close in 2007 only to be denied by a 50-metre drop goal by Bok super boot Frans Steyn.

However, the Wallabies rake believes an away-win next Saturday will be massive boost to their Tri-Nations campaign.

"Playing a Test in South Africa is one of the great things in rugby for us. To come over here and play in this atmosphere - that's what you play for," he said.

"If the Boks win all three home games, they can really set themselves up nicely. Therefore, it's important as far as the tournament goes, that we get a win on Saturday."