Phil Hughes has been called up to replace fellow left-handed top-order batsman Shaun Marsh in Australia's Test squad for the tour of South Africa.
Marsh suffered a calf injury during the recently-concluded One-Day International series against England and will not be fit for the three-match series.
Australia left it as late as they could before making the decision, and while fast bowler Jackson Bird was passed fit, Marsh was not so lucky.
"As Shaun Marsh’s calf injury has not improved as much as required over the past four days he has been withdrawn from the Test Squad for the Tour of South Africa," National Selector John Inverarity said.
"Phillip Hughes had been placed on standby and now comes into the Test Squad as a replacement for Shaun. Phillip will head to South Africa as soon as possible."
Hughes, who has now played 26 Tests for Australia, made his Test debut in South Africa in 2008, hitting a century in his second game.
He has gone on to score 1,535 runs at an average of 32.65 with two further three-figure scores and this season in first-class cricket has struck 549 runs in five games with three centuries.
He becomes the second replacement player to join up with the squad after Moises Henriques was drafted in to replace all-rounder James Faulkner.
The opening Test at Centurion Park gets underway on 12th February but before that, Australia take on an Invitational XI in a game that begins on Wednesday (5th February).
Australia Test squad: Michael Clarke (captain), Brad Haddin (wicket-keeper, vice-captain), Jackson Bird, Alex Doolan, Ryan Harris, Phillip Hughes, Moises Henriques, Mitchell Johnson, Nathan Lyon, James Pattinson, Chris Rogers, Peter Siddle, Steve Smith, David Warner, Shane Watson
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