4th Test: Aiden Markram's century dominates Australia

Aiden Markram on Friday smashed an unbeaten ton as South Africa took the morning honours against a changed Australia.

The Proteas were 88 for one at lunch on the opening day of the fourth and final test.

Australia, reeling from their ball-tampering scandal and led by new captain Tim Paine, made four changes, including a debut for seamer Chadd Sayers.

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Markram (53) and Hashim Amla (13) at lunch, will look to set up a sizeable total on a wicket that is already taking turn and showing widening cracks as they seek a first home series win over Australia in almost 50 years.

Dean Elgar (19) was the only success for the labouring touring side, and his mode of dismissal was a familiar one, the third time in the series he was caught off a leading edge from the bowling of Nathan Lyon.

The spinner had taken the first two catches himself, but this time the ball was snatched at mid-off by Sayers.

Steve Smith, his deputy David Warner and opener Cameron Bancroft were handed heavy bans and sent home for a ball-tampering plot in the third test in Cape Town.

The trio have been replaced in the side by Joe Burns, Matt Renshaw and Peter Handscombe, while Paine captains the side for the first time.

Fast bowler Mitchell Starc has a fracture in his leg and was replaced by Sayers.

South Africa, 2-1 up in the series, are unchanged with fast bowler Morne Morkel playing his final test match before he retires from international cricket.