Nottingham: With the No. 1 ranking secure until the new year, England have at least a major achievement to take away from this summer and are building well.
Jonathan Trott has been ruled out of the final one-day international against South Africa at Trent Bridge on Wednesday because of an injured hand.
The England batsman was struck on the right hand by a Dale Steyn bouncer at Lord's on Sunday but played on to make 47 in England's six-wicket victory.
Although Monday's scan revealed no "major fracture", Somerset's Jos Buttler has been added to the squad.
However, Yorkshire's Jonny Bairstow is likely to replace Trott in the line-up.
England lead the series 2-1 going into the fifth and final match against the Proteas.
Trott is England's second highest run-scorer in the series behind Ian Bell, with 142 runs at an average of 47.33.
South Africa lacked bite to their bowling attack and will want to get Morne Morkel back into their XI, possibly in place of Lonwabo Tsotsobe. Justin Ontong is also an option to replace one of the middle-order batsmen.
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: Graeme Smith, Hashim Amla, Jean-Paul Duminy, AB de Villiers (captain & wk), Faf du Plessis, Dean Elgar, Wayne Parnell, Robin Peterson, Ryan McLaren, Dale Steyn, Lonwabo Tsotsobe, Imran Tahir, Albie Morkel, Morne Morkel, Justin Ontong.
Pitch and conditions
The Trent Bridge wickets have got better as the season has progressed and with the weather forecast set for warm and sunny, batting first will be the desired option given the September dew may come into play under the floodlights.
Stats and trivia
Match facts
Wednesday, September 5 2012 (day/night)
Start time: 2.00pm local (1300 GMT)