James Pattinson will miss the rest of Australia's Test series against India due to a foot injury.
The rookie fast bowler, who has taken 25 wickets in his first four Tests, suffered the injury during Australia's innings-and-68-run win in Sydney.
Pattinson, 21, has been replaced in Australia's 12-man squad for the third Test in Perth by left-arm seamer Mitchell Starc.
"James Pattinson reported some left foot pain after the second innings of the Sydney test match," team physiotherapist Alex Kountouris said in a statement.
"He had X-rays and scans after the game that have cleared him of a stress fracture but have demonstrated early stage bone stress injury of the metatarsal bone of the left foot.
"He will be managed carefully over the next few weeks and will not be available for selection for the remainder of the ... series against India."
Chief selector John Inverarity claimed Pattinson would have been rested anyway for the January 13-17 fixture at the WACA.
"The intention of the national selection panel was to rest James from the Perth test match as this young man has played in four test matches over a period of just five weeks," said Inverarity.
Starc, also 21, played his first two Tests in the series against New Zealand in November, taking four wickets.
Ryan Harris, 12th man in Sydney, is again included to give the selectors the option of playing a four-man pace attack.
Australia lead the four-match series 2-0.
Australia squad: Michael Clarke (capt), David Warner, Ed Cowan, Shaun Marsh, Ricky Ponting, Mike Hussey, Brad Haddin (wkt), Peter Siddle, Ben Hilfenhaus, Ryan Harris, Mitchell Starc, Nathan Lyon