New Zealand skipper Mitchell Santner won the toss and opted to bat first against Temba Bavuma in the second semifinal today.
The match is happening in Gaddafi Stadium, Lahore.
The winner of this match will meet India in the final at Dubai on Sunday after the Men in Blue defeated Australia in the first semifinal on Tuesday.
Predictions for the Champions Trophy semi-final
South Africa and New Zealand have played a total of 73 One-Day International (ODI) matches with South Africa winning more than Kiwis.
However, in the Champions Trophy, both teams have faced each other twice, winning one match each.
In the spirit of Ramadan, the Pakistan Cricket Board (PCB) announced that all fans will be provided with free Iftar boxes as the 50-over match is going to conclude at night.
An iftar box will have dates, juice, and a mini pizza. Apart from this, other edible items will also be available for the fans which they can purchase.
Playing XIs
South Africa: Ryan Rickelton, Temba Bavuma(c), Rassie van der Dussen, Heinrich Klaasen(w), David Miller, Aiden Markram, Wiaan Mulder, Marco Jansen, Keshav Maharaj, Kagiso Rabada, Lungi Ngidi
New Zealand:Â Will Young, Rachin Ravindra, Kane Williamson, Daryl Mitchell, Tom Latham(w), Glenn Phillips, Michael Bracewell, Mitchell Santner(c), Matt Henry, Kyle Jamieson, William ORourke.