South Africa 342 (Markram 115, Elgar 71, Joseph 5-81) and 49 for 4 (Markram 35*, Joseph 2-17) lead West Indies 212 (Reifer 62, Blackwood 37, Nortje 5-36, Rabada 2-44) by 179 runs
Centurion: Asearing spell from Anrich Nortje saw South Africa gain a big lead in the first innings, but West Indies fought back with four wickets by stumps on day two.
West Indies' quicks put the Test match in balance with four wickets between them in the 8.1 overs of South Africa's second innings in Centurion on day two.
Having been bowled out for 212, West Indies made use of the brand new cherry to take out four South Africa wickets.
Dean Elgar was the first to fall as Alzarri Joseph, whose five-for had bowled South Africa out earlier in the day, got the visitors the early breakthrough.
He would later go on to dismiss Temba Bavuma for a duck, making it a pair on Test captaincy debut for the South African, while Kemar Roach and Jason Holder also took one apiece to leave the Test interestingly poised.
Earlier in the day, South Africa resumed their first innings at 314/8, having stumbled from 221/1 to 300/8 on Day 1, and could add just another 28 runs to their overnight score.
Marco Jansen and Gerald Coetzee showed intent right away with a boundary each in the opening over off Alzarri Joseph, but the tall speedster redeemed himself to bounce out the latter with the second new ball soon after.
Anrich Nortje threw his bat around for a brisk 14 off 11, before Joseph completed his maiden Test five-for and with it, wrapped up the South African innings for 342 with another dismissal off a bouncer.