South Africa lost skipper Faf du Plessis amid a clatter of late wickets as the match pendulum swung decisively towards Australia in the third day-night Test in Adelaide on Saturday.
The Australians, who led by 124 runs in the first innings, reduced the Proteas to 194 for six with the prized wicket of du Plessis for 12 coming late on the third day.
At the close, South Africa were holding on and just 70 runs ahead of Australia heading into Sunday’s fourth day.
Opener Stephen Cook was in sight of his second Test century and was unbeaten on 81 off 199 balls with Quinton de Kock yet to score.
Australia, bidding to prevent South Africa from carrying off a series clean sweep after huge defeats in the opening two Tests, took major strides on Saturday with Usman Khawaja leading the way with his near eight-hour epic.
Mitchell Starc captured the big wicket of du Plessis who, motivated by the events of his controversial pre-Test ball-tampering case, scored a career pinnacle unbeaten 118 in the first innings of the match. Du Plessis attempted to drive Starc only to get an outside edge to newcomer Peter Handscomb, who took a brilliant diving two-handed catch in the gully.
It was a major moment in the course of the Test given the ability of du Plessis to play out long match-saving innings, memorably his defiant 376-ball unbeaten knock of 110 to deny Australia victory in Adelaide four years ago.
Starc started the ball rolling, removing Dean Elgar with the fourth ball of his opening over for a duck and fellow paceman Josh Hazlewood had Hashim Amla caught behind for 45. It was the fifth time Hazlewood had captured Amla’s wicket in five innings in the series.
Spinner Nathan Lyon tightened the screws with three late wickets. JP Duminy played across the spinner and was bowled for 26 and Temba Bavuma fell three overs from stumps, caught off his gloves by Steve Smith sweeping Lyon for 21.
Lyon removed nightwatchman Kyle Abbott leg before wicket for a duck in the day’s final over.
South Africa’s chances of posting a competitive lead hinge on Cook and de Kock producing a big stand.
Khawaja earlier top scored with 145 with the last four wickets adding 100 runs to put the home side in command.
His 308-ball vigil finally came to an end when he was trapped leg before wicket by Vernon Philander.
The unflappable left-hander occupied the crease for 466 minutes after he was forced to open the innings after a miscalculation over David Warner’s time off the field for injury treatment when the Proteas unexpectedly declared.