Marsh injured his calf in Australia’s ODI win over England.
“As Shaun Marsh’s calf injury has not improved as much as required over the past four days he has been withdrawn from the Test Squad for the Tour of South Africa,” Cricket Australia said in a statement.
“Phillip Hughes had been placed on standby and now comes into the Test Squad as a replacement for Shaun.”
Meanwhile former assistant coach Steve Rixon has criticised Cricket Australia after he was sacked from the national team on Wednesday.
“I have no problems with the coaching staff, I have no problems with Boof (Darren Lehmann). I can’t quite say that about Cricket Australia,” he told Sky Sports Radio.
Rixon was due to remain in his position until the end of the World Twenty20 in April.
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