
Temba Bavuma and Quinton de Kock frustrated Australia as South Africa continued to build an imposing first innings total on the second day of the fourth Test at the Wanderers Stadium today.
South Africa were 400 for seven at lunch, with Bavuma on 61 not out.
Bavuma and De Kock (39) put on 85 for the seventh wicket - the fifth partnership of 50 or more in the innings.
The score has put the Proteas in a strong position in a match which the hosts need only to draw to clinch their first home series win against Australia since 1969/70.
South Africa lead the series 2-1.
Bavuma scored only four runs off the first 49 balls he faced on Saturday but then added another 21 runs off 21 balls to reach his fifty off 120 deliveries.
Australia are reeling from the ball-tampering scandal which resulted in captain Steve Smith and two other players being banned and banished in last weekend's third Test in Cape Town.