LIVE: SA v West Indies - Day 1
It was the third successive win of the toss for West Indies captain Denesh Ramdin, who elected to bowl in both of the first two Tests last month.
Both teams made a single change as the West Indies brought back all-rounder Jermaine Blackwood while South Africa handed Simon Harmer a Test debut.
The 25-year-old off-spinner is the third debutant in as many Tests for South Africa, who lead the series 1-0 and will make sure they retain their status as the top ranked test nation if they win.
Harmer's selection follows a debut in the last Test for right-hander Temba Bavuma and in the first Test for Stiaan van Zyl, who scored a century on debut.
South Africa won the first Test in the three-match series
by an innings and 220 runs in Pretoria before the second Test in Port
Elizabeth ended in a rain-affected draw.
Teams:
South Africa: Alviro Petersen, Dean Elgar, Faf du Plessis, Hashim Amla (captain), AB de Villiers, Stiaan van Zyl, Temba Bavuma, Simon Harmer, Vernon Philander, Dale Steyn, Morne Morkel.
West Indies: Devon Smith, Kraigg
Brathwaite, Leon Johnson, Marlon Samuels, Shivnarine Chanderpaul,
Jermaine Blackwood, Denesh Ramdin (captain), Jason Holder, Jerome
Taylor, Sulieman Benn, Shannon Gabriel.