Clarke not worried as bad back flares up

Question

Can someone tell me why Clarke not worried as bad back flares up

Answer 1

Less than a fortnight before the start of the Ashes series, Clarke, who has a history of back injuries and seldom bowls because of it, did not field in Victoria's second innings after spending nearly six hours at the crease for his century.Clarke, the linchpin of Australia's middle order, complained of soreness after fielding on Wednesday but batted with the injury before getting treatment from Cricket NSW physio Murray Ryan in the dressing room as a precautionary measure.