South Africa won the toss and decided to bowl in the second one-day international against England at the Mangaung Oval in Bloemfontein on Sunday.
"It's a morning game so the wicket might be a bit on the sticky side, there might be a little bit in it for the seamers," said South Africa captain Temba Bavuma.
"It looks a good wicket. We're happy to have first use of it," said England captain Jos Buttler.
"We played some really good cricket (on Friday) but we didn't quite do it for long enough."
Both teams made changes. Left-arm spinner Keshav Maharaj, and seamers Lungi Ngidi and Marco Jansen came in for South Africa in place of Tabraiz Shamsi, Kagiso Rabada and Sisanda Magala.
Chris Woakes and Reece Topley replaced fellow seam bowlers Jofra Archer and David Willey in what Buttler described as "rotation" of their bowling resources.
The third and final game of the series takes place at Kimberley on Wednesday.
England: Jos Buttler (captain, wkt), Jason Roy, Dawid Malan, Ben Duckett, Harry Brook, Moeen Ali, Sam Curran, Chris Woakes, Adil Rashid, Olly Stone, Reece Topley.
Umpires: Marais Erasmus, Adrian Holdstock (both RSA)
TV umpire: Bongani Jele (RSA)
Match referee: Jeff Crowe (NZL)