Earlier, Australia meant business after sending South Africa in.
Xavier Doherty (3/20), playing his first game of the tournament, took no time in making his presence felt. He bowled a clueless Richard Levi (0) in the match's opening over before dismissing Jacques Kallis (6) with a typical left-arm spinner delivery. The ball turned enough to induce a slight edge off Kallis' bat which was taken by the wicket-keeper, leaving South Africa at eight for two in the third over.
Things got worse for South Africa as they were reeling at 86 for five by the 15th over when captain de Villers (21) departed after slapping one straight to his counterpart George Bailey at extra cover.
It was only in the last five overs that the Proteas got a move-on. Peterson (32 n.o.) was at his innovative best, entertaining the crowd with a couple of reverse sweeps. Farhaan Behardien (31 n.o.) struggled to use the long handle but did well to support Peterson.
J.P. Duminy (30) was another one who made a vital contribution.
In Image: South Africa's batsman Jean-Paul Duminy, left, and captain A.B. de Villiers, center, run between wickets as Australia's Shane Watson, right watches