Andy Farrell will play the biggest game of his Rugby Union career on Friday night when he lines up at outhalf in the World Cup showdown against South Africa.
Remarkably, it will be Farrell's first senior game in the number 10 shirt since he switched codes to join Saracens. Farrell has been promoted to the starting line-up after Olly Barkley was ruled out because of a hip injury.
With Jonny Wilkinson battling to recover from an ankle ligament sprain, England head coach Brian Ashton has taken the decision to go with Farrell.
Barkley, comfortably England's best player against the United States in Lens last Saturday, underwent a scan yesterday after being injured in training. The problem is with his left hip, and England plan to issue a further medical update next Tuesday.
With skipper Phil Vickery sidelined because of a two-match suspension, Leicester flanker Martin Corry will take over as captain against the Springboks. Matt Stevens moves off the bench to replace Vickery, with Perry Freshwater joining the replacement bench.
England have also announced that after careful consideration they will not appeal Vickery's suspension, which means he is ruled out of the pool games against South Africa on Friday and Samoa in Nantes next week.