Marnus Labuschagne was cautious to begin with after Australia lost Marcus Harris cheaply in the first innings in Adelaide, but picked on the pace after raising his 12th half-century in Tests and is now on the verge of three figures. His 172-run stand with David Warner was the headline act of the opening day’s play before the left-hander succumbed to the nervous nineties for the second time in the series. With eleven overs left to be bowled, Labuschagne is primed for an Ashes ton.