London - England won the toss and will bowl in the fourth one-day international at Lord's.
The hosts are unchanged from the side which beat South Africa by four wickets at the Oval on Friday, to square the five-match series at 1-1.
South Africa made one change, replacing seamer Morne Morkel with Ryan McLaren.
England: Alastair Cook (captain), Ian Bell, Jonathan Trott, Ravi Bopara, Eoin Morgan, Craig Kieswetter, Samit Patel, James Tredwell, James Anderson, Steven Finn, Jade Dernbach.
South Africa: AB de Villiers (captain), Graeme Smith, Hashim Amla, Dean Elgar, JP Duminy, Faf du Plessis, Dale Steyn, Wayne Parnell, Robin Peterson, Ryan Mclaren, Lonwabo Tsotsobe.