Barty injury puts Sharapova into Brisbane quarters
Ashleigh Barty hits a return to Kiki Bertens of the Netherlands on day one of the Brisbane International at Pat Rafter Arena in Brisbane on December 29, 2013
Barty was scheduled to play third seed Maria Sharapova in the second round on Wednesday.
Sharapova will now advance to the quarter-finals, where she will play 2012 champion Kaia Kanepi of Estonia.
"It’s been great to play at home in Brisbane and it's disappointing I won’t be able to play against Maria tomorrow, but I’ve got to do what’s right for my body," said Barty, 17.
"Sometimes these are really hard decisions to make but that’s what I have to do."
Barty has also withdrawn from next week's Hobart International.