South Australian Opposition Leader Isobel Redmond has broken her silence to say she'll fight for her job when challenged by her health spokesman in a vote scheduled for Tuesday.
Martin Hamilton-Smith announced on Friday he would contest the ballot for the SA Liberal Party leadership with fellow frontbencher Stephen Marshall standing for deputy, a position held by Mitch Williams.
Ms Redmond waited until Sunday to confirm in a statement that she would seek re-election.
She said she 'looked forward to continuing in that role to deliver a decisive election victory in March 2014'.
'I've spent the last two days talking to my colleagues and look forward to receiving their support on Tuesday to ensure that we go on as a united force to the election, and to victory,' she said.
Ms Redmond said the challenge to her leadership came at a time when the state was in deep financial crisis and when public support for the Liberals was exceptionally strong.
'South Australia has the worst government in history and is under increasing threat from cost-of-living pressures and massive Labor government waste,' she said.
Mr Hamilton-Smith said on Friday he had a plan to deliver 'growth, vitality and prosperity' to all South Australians.
He was opposition leader from 2007 to 2009 but was replaced after leaked documents he used to link the Labor government to the Church of Scientology turned out to be fakes.
Speculation about Ms Redmond's leadership has dogged her recently, particularly after her gaffe last month when she said a future Liberal government would cut about 25,000 public service jobs.
She later withdrew the comment, saying it was not Liberal Party policy.
Ms Redmond also revealed she had considered, but then rejected, taking up a casual Senate vacancy.
She also refused to deny or confirm reports that she had offered to step aside to allow former foreign minister Alexander Downer to take over the leadership.