Eddie Jones given no uarantee he will be England’s World Cup coach

• But Australian retains RFU support despite poor results
• Run of defeats was ended by 25-10 win over South AfricaEddie Jones has been told there is no absolute guarantee he will remain as England’s head coach until the 2019 Rugby World Cup despite his team’s victory in the third Test against South Africa.Rugby Football Union officials have stressed, however, that Jones retains their support after a season during which England finished fifth in the Six Nations Championship