Postpublished at 10:48 British Summer Time 27 May 2017
So in case you missed it - England will bat first after South Africa won the toss and put them in.
Here are the teams...
England: Hales, Roy, Root, Morgan, Stokes, Buttler, Ali, Rashid, Plunkett, Wood, Ball.
South Africa: Amla, De Kock, Du Plessis, De Villiers, Miller, Berhardien, Pretorius, Morris, Phehlukwayo, Maharaj, Rabada.