Australia await diagnosis of Michael Clarke's latest back injury to determine if he'll play any further part in the first Test against India.
Clarke was sent from Adelaide Oval for urgent medical assessment after being forced to retire hurt on Tuesday's opening day.
"He has had some injections in his lower back and the medical staff will see how he pulls up tomorrow morning," a Cricket Australia spokeswoman said.
Clarke overcame a hamstring strain to be declared fit for the Test, but retired hurt with back spasms when on 60.
The skipper ducked inside a short ball from Indian quick Ishant Sharma and instantly grimaced in pain from the latest flare-up of his chronic back problems.
"He has gone off for some scans," teammate David Warner told the Nine Network.
"We'll have to wait and see how he is but he didn't look too good out there.
"He's a tough character ... he fought hard for his 50 and he was set for a 100."
Clarke has three degenerative discs in his lower back, a problem first diagnosed when he was 17.
The discs are linked to Clarke's continuing hamstring problems - he strained a hamstring on November 14 in a one-day international against South Africa in Perth.
The skipper fought to recover in time to play in the Test series opener in Adelaide and appeared untroubled by the hamstring strain during his innings.
Clarke faced 84 balls and struck nine fours in a stylish knock but after weaving inside the Sharma leg-side bouncer, sank to his knees.
The 33-year-old attempted some back stretches while laying on the ground.
But after consulting team medicos, Clarke hobbled from the field.
Clarke undergoes continuous strength work on his back and core muscles, including using a machine designed by a former personal trainer of Arnold Schwarzenegger.
He has said the MedX machine designed by Arthur Jones was vital to extending his cricket career.
"It is a matter of life and death for my career," Clarke wrote in his Ashes Diary released last year.
Share
