South Africa struck to remove David Warner cheaply but Australia held firm to be 68 for one at lunch on day one of the third test on Wednesday after home captain Pat Cummins won the toss and elected to bat. Opener Usman Khawaja was 25 not out, with number three Marnus Labuschagne on 30, the pair having built an unbeaten 56-run partnership on an overcast day at the Sydney Cricket Ground.
