London: If this game has been the ultimate Test, as billed by its promoters, then Australia’s increasingly fragile batting lineup has largely failed its questions.

Hoping to settle their top six ahead of the Ashes at home this summer, the national selectors – all of them in attendance at Lord’s this week – have a long list of fresh queries about how to produce the runs required to keep winning games.

Marnus Labuschagne could do no better than two starts.Credit: AP

Now with 300 wickets in Tests, Pat Cummins will back his men to outbowl South Africa here in the final innings of a game in fast-forward, particularly after Alex Carey (43) found a willing ally in Mitchell Starc for a stand of 61 in the final hour.

But the magnificent pace and spin ensemble led by the captain, alongside Josh Hazlewood, Starc and Nathan Lyon with Scott Boland in reserve, should not be having to go back to the well this often. CricViz has the Proteas narrow favourites: 51 per cent to 49, with the Australians leading by 218 overall.

“Ideally we’d probably have a few more wickets in the shed,” Cummins said. “But the trend of the game is it’s still pretty difficult out there, so it’s set up pretty well for a day three finish you’d imagine tomorrow, but we’re going to have to bowl well.”

Usman Khawaja (zero and six)........

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