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Hamilton: South Africa won the toss and elected to bat in the fourth one-day international against New Zealand in Hamilton on Wednesday.
The Proteas lead the five-match series 2-1 and can wrap it up with a win at Seddon Park, where they claimed a tight four-wicket victory in the first one-dayer.
The pitch in that fixture was a raging turner and South African captain AB de Villiers said while he did not expect the same movement this time, it should prove spin-friendly late in the day-nighter.
"I think it'll play best in the afternoon then maybe get a bit slow in the evening and turn a bit," he said.
South Africa made only one change from the last match, with Chris Morris coming in for an injured Andile Phehlukwayo.
New Zealand skipper Kane Williamson said he would also have opted to bat first but the Black Caps hoped to exploit any early movement by playing two specialist spinners.
He said Jeetan Patel would join fellow tweaker Mitchell Santner, replacing paceman Lockie Ferguson.
The Black Caps also strengthened their batting line-up, welcoming back opener Martin Guptill from injury and calling up wicketkeeper Luke Ronchi to replace Tom Latham.
New Zealand are looking to extend a run of eight home ODI series unbeaten.
After losing the opening fixture, they bounced back for a six-run win in game two but were thrashed by 159 runs in the third.
New Zealand: Dean Brownlie, Martin Guptill, Kane Williamson (capt), Ross Taylor, Luke Ronchi, James Neesham, Colin de Grandhomme, Mitchell Santner, Tim Southee, Jeetan Patel, Trent Boult
South Africa: Hashim Amla, Quinton de Kock, Faf du Plessis, AB de Villiers (capt), JP Duminy, David Miller, Dwaine Pretorius, Chris Morris, Wayne Parnell, Kagiso Rabada, Imran Tahir
Umpires: Paul Reiffel (AUS), Wayne Knights (NZL)
Third umpire: Joel Wilson (WIS)
Match referee: Javagal Srinath (IND)
(With inputs from AFP)