The allrounder suffered the blow during training and has been ruled out for between four and six weeks
Australia are set to be without batting allrounder Ashton Turner for the upcoming T20s against Sri Lanka and Pakistan after breaking his finger.
The 26-year-old suffered the blow during training and has been withdrawn from Western Australia's upcoming matches against New South Wales.
Having played in two T20s against India last February, Turner is likely to have been among the Australia squad selected for the back-to-back series, which start against Sri Lanka on October 27 in Adelaide.
Pakistan are then the opponents in three T20s which begin on November 3 in Sydney.
"Ashton sustained a fracture to his right index finger at training this week," WA sports medicine manager Nick Jones said.
"After reviewing the injury with specialists, he will require a period of approximately four-six weeks before being able to return to play."