James Faulkner could miss the three-match Twenty20 series against England due to a knee injury.
The 23-year-old did not travel with the rest of the squad to Hobart today having pulled up sore following his man-of-the-match performance in the five-run fifth one-day international win yesterday.
Faulkner instead flew to Melbourne to have the injury assessed on the back of a scan after the match.
The all-rounder is a key part of Australia's Twenty20 team and had been included for the England series despite selection for the tour of South Africa.
Australia are due to fly out for that next week, although Faulkner's injury is the latest blow to preparations to meet the Proteas.
Shaun Marsh’s participation is also in some doubt after he suffered a calf injury in Adelaide.
The top-order batsman, a surprise selection for the tour, was forced off the field in the 36th over of England's chase yesterday.
The left-hander is confident he will be fit to take his place on the plane to South Africa, telling reporters at Adelaide airport: "Yeah it's not too bad. She'll be right. I'm fine."