Australia will assess the conditions in Centurion, Johannesburg, before deciding who fills George Bailey's vacant spot in the test side.
Alex Doolan and Phillip Hughes will have one tour match to impress coach Darren Lehmann and chief selector John Inverarity before the highly anticipated three-test showdown with No1-ranked South Africa opens on Wednesday week.
Lehmann will cast a very keen eye on the pair during the four-day match against a South African Invitational XI in Potchefstroom, starting tomorrow.
But the 43-year-old is more interested in what SuperSport Park's curator has cooked up.
"We won't make any decision until we get to Centurion," Lehmann said.