Saracens’ Jamie George ready to step up for England if Dylan Hartley is unfit

• Sarries hooker is currently top try-scorer in Premiership• Captain Hartley suffering back problem but due back soonThe in-form Saracens hooker Jamie George has declared himself ready to make his first start for England next month if Dylan Hartley’s fitness problems hamper the national captain’s availability.Northampton remain optimistic that Hartley will recover from back trouble to feature in their opening European fixtures this month but the 30-year-old has played just 106 minutes of club rugby this season. Related: England’s run of serious training injuries is about more than bad luck | R…