Chelsea target Everton’s John Stones again amid squad overhaul

• Chelsea stress fresh confidence in thriving youth academy
• Manchester City and Barcelona among rivals for John StonesChelsea will revive their pursuit of Everton’s John Stones this summer despite a recent slump in the England centre-half’s form but insist they retain confidence in a hugely successful youth team to provide “the next John Terry” in the near future.They visit Manchester City in the first leg of the FA Youth Cup final on Friday, in the holders&rs