Mitchell Johnson roared in to take three early wickets, South Africa v Australia, 1st Test, Centurion, 2nd day, February 13, 2014© Associated Press
Mitchell Johnson began confidently at the crease, South Africa v Australia, 1st Test, Centurion, 2nd day, February 13, 2014© AFP
Ryan McLaren made the first breakthrough, South Africa v Australia, 1st Test, Centurion, 2nd day, February 13, 2014© AFP