Australian fast bowler Josh Hazlewood has been ruled out of the Australian Test squad for the upcoming tour of India because of a back injury.
The 19-year-old sustained pain in his lower back during a practice session for the series against India in the sub-continent, where they will play two Tests and three one-day internationals.
Team physiotherapist Alex Kountouris said Hazlewood, who was the youngest player to make his debut for his country, will some rest to recover.
"His symptoms were consistent with a low back bone stress injury and scans have confirmed the early stages of a low back stress fracture," he said in a statement.
"As such, he has been withdrawn from the Test series, as he will require a period of rest from bowling to allow the bone stress to resolve.
"He will be monitored by New South Wales and Cricket Australia medical staff to determine his return to cricket."
Fellow New South Wales paceman Mitchell Starc and Victorian fast bowler James Pattinson have been placed on standby if there is another injury in the squad.
The Bushrangers are currently in South Africa playing in the Champions League Twenty20 series, and Pattinson will stay with the squad until their finals fate is decided.
Chairman of selectors Andrew Hilditch said that while it is a blow for Hazlewood, the injury provides a stage on which Pattinson and Starc can shine.
"The injury to Josh is obviously very disappointing as he is one of the young fast bowlers we have identified as having an important role of to play in Australia's future," he said.
"At the same time it does create opportunity for another two young fast bowlers who we are equally sure will make the most of the opportunities they are presented.
"We are adding these two standby players to ensure we have adequate cover for the tour game being played before the first Test.
"The need for these standby players to return to Australia will be determined at the end of the tour match."