Ground staff bring on the covers at Kingsmead, South Africa v New Zealand, 1st Test, Durban, 2nd day, August 20, 2016© AFP
Mitchell Santner celebrates with Kane Williamson after picking up a wicket, South Africa v New Zealand, 1st Test, Durban, 1st day, August 19, 2016© Getty Images
Kagiso Rabada gets under a bouncer, South Africa v New Zealand, 1st Test, Durban, 1st day, August 19, 2016© Getty Images