The left-hander, who is now at the crease as the Bulls chase the 128 needed for an eighth Shield title, will join the squad in the wake of the ball-tampering crisis.
Matthew Renshaw has guided Queensland to an eighth Sheffield Shield title with a nine-wicket victory over Tasmania, hitting the winning runs just hours before flying to South Africa to join Australia's Test squad.
Australia have added opening batsman Matt Renshaw to their squad for the fourth Test against South Africa in Johannesburg.
Renshaw, who has scored 623 runs in 10 tests at an average of 36.64, said he hadn't been concentrating much on the ball-tampering scandal.
Co-incidentally, it was Bancroft who replaced Renshaw for the openers' slot. He and vice captain David Warner agreed to stand down as team leaders pending an investigation by Cricket Australia, which is expected to result in further sanctions possibly for both the senior batsmen and Bancroft.
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The southpaw's urgent call-up comes following the suspension of captain Steven Smith from the next Test after public confessions of leading the ball-tampering scandal which saw Cameron Bancroft rub one side of the ball with a sandpaper during the third Test at Cape Town.
A decision on Darren Lehmann's future as Australia coach may also be announced by CA.
Warner and Bancroft are yet to receive any sanctions from Cricket Australia, but Renshaw's addition to the squad suggests he could feature at the top of the order come Friday.
Renshaw looks set to play in his first Test since September previous year, after he was dropped in favour of Bancroft for the Ashes.