David Warner retired hurt after hitting a majestic 200 as Australia dominated day two of the second test against South Africa at Melbourne.
Australia were 386 for three, in reply to the visitor's first innings of 189, with a lead of 197 runs and the series at its mercy after the six-wicket win in the Brisbane opener. Warner and Steve Smith put on a 239-run stand for the third wicket.
Short of runs and without a century in nearly three years, Warner slogged his way to his third double-hundred from 254 balls before retiring hurt, in his hundreth test match.
On the way to his 25th hundred, the 36-year-old opener became the eighth Australian to reach 8,000 test runs, while ending the debate about his place in the side.
Australia resumed at their overnight score of 45 for one in the morning.