Serena Williams withdrew from the genre rope ahead of the Australian Open on Friday due to an injury to her right shoulder.
The news came just hours after her quarter-final win in the Yarra Valley Classic.
The 23-time Grand Slam winner would face Australia's number one, Ash Barty, after beating compatriot Danielle Collins 6-2, 4-6 (10-6) in the quarterfinals.
Ashleigh Barty advances to the final on walk over.
The text is updated.