England defence coach Felix Jones hands in resignation

Felix Jones has resigned as England’s defence coach in a shock development that continues the recent upheaval to Steve Borthwick’s backroom staff.

Jones has been an important figure for England since his recruitment 10 months ago from South Africa, who he helped win back to back World Cups under the guidance of Rassie Erasmus.

The 37-year-old former Ireland international was responsible for introducing the blitz defence that was starting to bear fruit after some teething problems early in the Six Nations.

Its aggressive nature troubled New Zealand in July when England fell to narrow defeats in Dunedin and Auckland.

News of his surprise departure comes in the wake of influential head of strength and conditioning Aled Walters dropping an equally unexpected bombshell by defecting to Ireland.

Walters was an influential voice on the training field whose involvement extended beyond his S&C duties and he was joined through the exit door by Tom Tombleson, a long-serving member of the conditioning staff.

The uncertainty surrounding the England management team includes Kevin Sinfield, the rugby league great who was demoted to skills coach to accommodate Jones’ arrival.

However, an extension of his stay and in what capacity has yet to be confirmed.

Jones’ desire to leave is understood to be linked to Walters’ departure, with the two forming a strong working relationship while serving under Erasmus with Munster and then South Africa.

But the churn of backroom staff – a destructive theme of the Eddie Jones era – also asks questions of Borthwick’s methods.

The All Blacks’ visit to Twickenham on November 2 opens a schedule that continues with fixtures against Australia, South Africa and Japan and it remains to be seen if Jones will be involved.

Borthwick will see the development as a huge setback having repeatedly hailed the impact made by Jones, whose knowledge he has described as “groundbreaking”.