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Stuart Broad proved to be England's hero with the ball once again, claiming South Africa's first five wickets as the tourists closed in on a series-clinching victory in the third Test at the Wanderers.
After England earned a slender first-innings lead of 10, the game was firmly in the balance until Broad imposed himself upon proceedings.
In a devastating spell after lunch, the fast bowler removed Dean Elgar, Stiaan van Zyl, AB de Villiers, Hashim Amla and Temba Bavuma to reduce the Proteas to 35-5.
Here we look at how Broad's 5-14 from 10 overs - which included a spell of 5-1 from 31 deliveries - moved England into a commanding position.
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1.21pm Elgar ct Bairstow b Broad 15. South Africa 23-1
Elgar fends at a back-of-a-length delivery and feathers an edge through to the wicketkeeper.
1.42pm Van Zyl ct Stokes b Broad 11. South Africa 28-2
The batsman pushes at one on a length and offers a straightforward chance to gully.
South Africa's dangerman gets an inside edge on a jaffa from Broad and Bairstow completes a regulation take.
1.55pm Amla ct Taylor b Broad 5. South Africa 31-4
The former Proteas captain middles a glance off his legs, only for the short-leg fieldsman to claim a superb chance just above the ground.
Bavuma, a centurion in the previous Test, attempts to sway out of the way of a short delivery, but only succeeds in deflecting onto his stumps via his glove.