The All Blacks have re-jigged their backline and suffered a few injury blows for Saturday’s Rugby Championship clash against the Springboks at Cape Town Stadium (5pm start).The bad news for coach Scott Robertson is that two of New Zealand’s best players in last week’s 31-27 defeat to the Boks at Ellis Park, wing Caleb Clarke – who scored two tries – and blindside flank Ethan Blackadder have been ruled out with injuries.But not all the changes made by the New Zealand boss on Thursday morning were enforced. Will Jordan has been shifted to fullback in place of Beauden Barrett, who…