London: Having taken back the number one ranking in the 50-over version from the visitors, the hosts will be keen on retaining it and go 2-1 up in the series.
England could well go with an unchanged side which would still mean no place for Jonny Bairstow. Ravi Bopara's tight 10 overs in the previous match will probably earn him another outing despite his batting struggles. Samit Patel did not bowl in last game, so in theory Bairstow could replace him.
On otherhand, Graeme Smith, Hashim Amla, AB de Villiers and JP Duminy - with this batting order, South Africa have in them a line-up that is capable of winning the match from any position. While the openers Smith and Amla have been scoring pretty well and are in good form with the bat, de Villiers and Duminy have not done much in this series.
Teams from:
England: Alastair Cook (captain), Ian Bell, Jonathan Trott, Ravi Bopara, Eoin Morgan, Craig Kieswetter (wk), Samit Patel, James Tredwell, James Anderson, Jade Dernbach, Steven Finn, Tim Bresnan, Graeme Swann, Jonathan Bairstow, Chris Woakes.
South Africa: Hashim Amla, Graeme Smith, Dean Elgar, AB de Villiers (captain & wk), Faf du Plessis, Jean-Paul Duminy, Wayne Parnell, Robin Peterson, Dale Steyn, Morne Morkel, Lonwabo Tsotsobe, Imran Tahir, Albie Morkel, Ryan McLaren, Justin Ontong
Pitch and conditions
It would be good to see a one-day pitch with some pace and bounce to encourage stroke play. Now that September has arrived the start time to day games is a little earlier which may encourage some movement for the pace bowlers, but Lord's is usually pretty flat. The forecast is for an overcast, but dry, day.
Stats and trivia
Match facts
Sunday September 2, 2012
Start time: 10.15am local (0915 GMT)