England’s Eddie Jones raises Dylan Hartley captaincy doubt over ban

• Coach says hooker let himself down with stiff arm tackle on Sean O’Brien• Says ‘it is not the last chance for him’ but behaviour must improveEddie Jones has said the England captain Dylan Hartley “has let down himself, has let down his club and has let down his country” following his red card and six-week ban for a stiff-arm tackle on Leinster’s Sean O’Brien.The England head coach has also told the Northampton hooker that there is no guarantee he will hold on the England captaincy following the dismissal and subsequent suspension that will rule him out until 23 January. Related: England capt…