The former World No 1 hurt her shoulder during training and decided to pull out of Brisbane to avoid the risk of further damage.
Wozniacki said she was confident she would be able to play in Sydney next week.
Photos: Tamannaah Bhatia sizzles in metallic gown
Photos: Arjun Kapoor and Raj Thackeray at event in Mumbai
In pictures: Here are the fastest ODI centuries in cricket history
'Shaadi No. 1': 10 famous Bollywood weddings in pictures
Photos: 10 beautiful moments that capture winter around the world
Bollynews Fatafat: Will Salman Khan go behind the bars again?
A love story that changed Monica Bedi's life forever!
What does Sunny Leone and Salman Khan have in common?
Bollynews Fatafat: Zaira Wasim finds support in Aamir Khan and Phogat sisters!