Australian seamer Peter Siddle was left rueing missed chances after his no ball gave Kallis a life on 43 and he dropped a catch off his own bowling that would have sent Amla back to the dressing room with 74 runs. The home side had hoped the bowling attack which destroyed India’s vaunted batsmen last year would do the same with the South Africans but the fireworks from James Pattinson, Ben Hilfenhaus and Siddle failed to materialise.

Amla, the world’s top-ranked batsman, signalled his intent early in the day with a soaring six off spinner Nathan Lyon and coolly paced his innings, easing up when the quicks got into their stride and opening up against anything loose. The 29-year-old put on 90 for the second wicket with Petersen before the opener threw away his wicket by wafting a shot for Mike Hussey to catch at mid-on off Lyon’s bowling halfway through the second session.

Picking up his 5,000th Test run along the way, Amla reached his 24th Test half century before tea and, Siddle’s dropped catch apart, it looked like only the gathering clouds would stop him reaching his 17th Test century.

The evergreen Kallis had designs on the milestone himself after racing to his 56th test half century in just 63 balls, reaching the mark with a sublime cover drive. The all rounder rode his luck, though, when he ballooned a catch to Lyon only for the umpire to call him back to the crease after TV replays showed Siddle had failed to keep his front foot behind the line. Australia had earlier benefited from the TV appeal system to dismiss Smith lbw when a Pattinson delivery caught the South African skipper’s trailing leg but umpire Billy Bowden declined to raise his characteristic crooked finger.

South Africa won the toss and chose to bat, which looked like a good decision after the wicket and overcast conditions failed to produce the sort of swing and movement off the pitch the seamers had hoped for.

Duminy ruled out

WHETEHR South Africa’s other big decision of the morning -- to drop spinner Imran Tahir and give a debut to Rory Kleinveldt as part of a four-pronged pace attack — proves a good one was put into doubt when JP Duminy was injured after close of play. He was ruled out of for the reminder of the Test series after rupturing his left achilles tendon.

CSA said in a statement the left-handed batsman and part-time spinner would undergo surgery to re-attach the tendon on Saturday morning and could be out of action for up to six months. Duminy, 28, who was expected to support a four-pronged pace attack with his off-spin, hurt his left ankle in a fall during a team training run after South Africa had reached 255 for two. He had to be helped off before being taken to hospital for a scan.