Australia 110 for 6 (Khawaja 53, Philander 3-17) trail South Africa 488 (Markram 152, Bavuma 95, Cummins 5-93, Lyon 3-182) by 378 runs
Johannesburg: Bavuma remained unbeaten on 95 as Australia face a mountain to climb just to avoid the follow on after horror day in Johannesburg on Saturday.
The fatigue of jet lag, 137 overs in the field and living through an emotionally-draining week for the Australians was evident on Saturday as the Proteas powered their way to a commanding position in Johannesburg.
At stumps on day two, Australia, at 110 for 6, are staring at a colossal first-innings deficit after the Proteas racked up 488 batting first.
Australia suffered twin collapses in the final session – 3-28 and 3-6 – to hand the ascendancy to South Africa, who look hell-bent on not letting it slip.
Patrick Cummins’ five-wicket haul and a rear guard 53 to Usman Khawaja were the only highlights for the tourists on Saturday as Temba Bavuma’s unbeaten 95 entertained those in attendance at The Wanderers.
Two late wickets to debutant Chadd Sayers on day one kept Australia within touching distance of the hosts at 6-313, but the quick wickets the tourists needed on the morning of day two never came.
It took Australia 21 overs to secure the breakthrough when Quinton de Kock somehow got tangled up and bunted a Nathan Lyon long-hop to Mitch Marsh at mid-on.
Before the Proteas gloveman departed, he played a supporting role in an injury scare to his counterpart and Australia captain Tim Paine.