John Hastings
John Hastings

Australia will make at least three changes for the third Test against South Africa with pacemen Peter Siddle and Ben Hilfenhaus left out of a 12-man squad announced Thursday.

With the series poised precariously at 0-0 and all three quicks now ruled out for the Perth Test, Australia will be taking in an entirely new pace attack.

Quicks Mitchell Johnson and Mitchell Starc have been named, along with all-rounders John Hastings and Shane Watson, who has recovered from a calf problem that kept him out of the opening two matches.

Spinner Nathan Lyon was retained in the 12, but a decision on whether he plays is not expected until before the match starts on Friday.

The changes come on the back of news the WACA match will be former captain Ricky Ponting's last, with the 37-year-old confirming his retirement from Test cricket.

Both Siddle and Hilfenhaus were forced to shoulder a massive load in Australia's unsuccessful attempt to bowl out the Proteas in their second innings in Adelaide, combining for 67 overs between them in the absence of James Pattinson.

Pattinson injured a rib earlier in the match and will miss the rest of the summer.

Siddle in particular seemed to be struggling badly with fatigue after a herculean effort in taking 2-111 from 36 overs in the Proteas' second dig.

'''Third Test squad:'''
Michael Clarke, Shane Watson, Ed Cowan, Josh Hazlewood, John Hastings, Mike Hussey, Mitchell Johnson, Nathan Lyon, Ricky Ponting, Mitchell Starc, Matthew Wade, David Warner


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