AUSTRALIAN hooker Michael Foley said on Wednesday that the Wallabies will have to put their heads together to counter the Springbok scrum when they play their World Cup semi-final on Saturday. Foley, who has played 27 Tests for Australia, said South Africa’s pack would present a different challenge to that of Wales who the Australians defeated last weekend in the World Cup quarter-finals. The Springboks feature a tough front row of Os du Randt, Cobus Visagie and hooker Naka Drotske. “South Africa has a more athletic pack that Wales,” he said. “Also, Wales’ combination has had about 12 months together, whereas South Africa’s has been together far longer. “It’s important that we look at ways to counteract their size in the scrums. “It’s no good pounding your head against a brick wall all day. Tactics will play a big part. We’re going to have to concentrate hard in all aspects of our game. If you’re a little bit off, South Africa are the type of side who will take advantage.”