Marques Ackerman gets a shot to go down the leg side, but can only take a single from it.

Two dots end the over and Ackerman will have the strike again, needing a single for a first Test half-century.

A good over from Josh Hazlewood, who records only the second maiden of the day.

South Africa have scored 29 runs off the last 30 balls, illustrating the issues that Australia have faced thus far.

A moment ago, we gave you an update from the ongoing T20 between New Zealand and India in Wellington.

India's Abhishek Sharma has just added another T20 century to his collection, this time in 35 deliveries.

Michael Vaughan
Former England captain on X

This feels like Nasser in Brisbane decision...

Ackerman is closing in on a first Test half-century at just the second time of asking.

An over of 10 runs, all from Ackerman. The last four driven through extra cover off the final ball of the over.

More questions than answers so far for Australia.

Marques Ackerman is into the 40s after reverse sweeping Nathan Lyon for four at the start of Lyon's fourth over.

After a couple of nervy moments early on, Ackerman has shown some real promise.

Just two singles for Josh Hazlewood, who has previously dismissed Aiden Markram three times in Test cricket.

Three dots end the over and South Africa are motoring along here nicely.

Josh Hazlewood had career best figures in the second Test, but like Australia, is yet to get off the mark today.

SA 70-0published at 15.3 overs

15.3 overs

Marques Ackerman sends that into the stands!

Another skip down the track, he smashes a Nathan Lyon delivery for six. Using his feet and timing the stroke expertly.

A hammer blow to Lyon, who had kept the rate down until now.

Image source, Getty Images

Australia are on the back foot in Cape Town but they're not quite suffering as much as New Zealand in their third T20 against India in Wellington.

After piling up 198-3, New Zealand have been unable to stop India charging to 156-1 in just eight overs.

Abhishek Sharma is on the brink of another T20 century. He's just going to miss out on beating his own 30-ball record in full-member T20s.

Scorecard

Marques Ackerman picks up two more before the over is out, this time through the leg side.

Nathan Lyon is also changing ends after a couple of tidy overs so far.

Josh Hazlewood is back into the attack, but from the other end from where he started the day.

Marques Ackerman returns from the drinks break in fine form.

He sends balls one and three of the over to the boundary with a couple of guided shots through point.

One lofted, one low. Same result.

Improved control from Australia captain Pat Cummins.

Just two singles are given up as we reach the first drinks break of the day.

Just two runs come from that over.

The crowd at Newlands is significantly improved on what we've seen in the previous two matches in this series. Always good for the game when you have a well-attended Test match.

Some calculated aggression from Marques Ackerman brings a couple more run and brings up the 50 partnership.

Exactly what South Africa will have hoped for after losing the toss.

Aiden Markram picks up a couple more before the over is out.

Australia captain Pat Cummins has gone for a run-a-ball in his first three overs.

Pat Cummins strays short and, not for the first time, Aiden Markram takes advantage.

Stand and deliver. Markram pulls it square for four more.

A good response from Cummins, who beats Markram's bat with his next delivery.

Four dots start the over before Marques Ackerman cannot fight the urge for a trip down the wicket any longer.

He and Markram exchange singles to end the over.