He will be reassessed by the specialist later this week and will return to his planned programme of rehabilitation once the wound has fully healed,' England and Wales Cricket Board's (ECB) statement said.

Pietersen, who after his surgery was estimated to be out for at least six weeks, is now likely to miss the autumn's heavy schedule of one-day internationals, which include seven matches against Australia next month followed immediately by the Champions Trophy, with England due to play their first game September 25.

In the absence of Pietersen and Andrew Flintoff, England were humiliated by Australia in third Test at Headingley over the weekend to leave the Ashes series level 1-1.