Steffon Armitage to miss out on England’s Rugby World Cup training squad

• Toulon back-row Steffon Armitage excluded for playing abroad• Stuart Lancaster rules no ‘exceptional circumstances’ applyEngland will not name Steffon Armitage in their 50-man training squad for this autumn’s Rugby World Cup but are set to include Sam Burgess in their preliminary list of names. The Saracens pair of Chris Ashton and Maro Itoje are also in the frame as Stuart Lancaster prepares to unveil his selection at Twickenham on Wednesday. Related: Stuart Lancaster takes no chances with 50-man World Cup training squad Related: Sam Burgess equipped for England blindside flanker role, say…