David Bedingham ducks under a bouncer.
Medium pacer Beau Webster comes into the attack. Verreynne cuts the third ball to deep point for a single and Bedingham takes one off the next.
Verreynne gets the edge but he has played with soft hands as the ball falls just short of Steve Smith at second slip fielder, who makes a good attempt.
Verreynne glances the last ball to fine leg for a single to bring up South Africa's 100, in the 45th over.
Hazlewood bowls a tidy over as Verreynne manages just a single off the third ball as Bedingham looking solid in his defence.
Verreynne clips Webster off his pads for two runs and the pacer has overstepped for another extra run.
He guides the next to thirdman for a single and Bedinghamgets one at square leg.
Some width from Webster as Verreynne punches it past Labuschange in the covers for a couple of runs.
Hazlewood tries the short ball but Bedingham easily pulls it for a single and Verreynne flicks the pacer past mid-on for a couple.
Webster to bowl the final over of the day. The inswinging delivery is clipped square by Bedingham for a couple of runs.
A moment of interest for the fans as Bedingham is struck high on the pads by the inswinger as Australia appeal for handling the ball but the umpire turns it down. Wicketkeeper Alex Carey wanted to take the catch but Bedingham picked the ball out of the flap of his pads and put it down.
Bedingham ends the session with two confident shots, hitting Webster straight down the ground for a four and slammed the last ball through the covers for another four.
South Africa have enjoyed a good session, losing just one wicket in the morning session, to reach 121/5 in 49 overs at the lunch break.
Bedingham has batted well to score 39 from 95 balls, while Verreynne is on 11.
They now trail Australia by 91 runs.
Resuming on 43/4, South Africa did well to score 78 runs in 27 overs to get themselves back in the running.