• Blues keen to forestall Tottenham's interest in centre-half• Cahill would re-form England partnership with John TerryChelsea have opened formal talks with Bolton Wanderers aimed at deflecting long-standing interest from Tottenham Hotspur in Gary Cahill and at securing the England centre-half for around £7m when the transfer window opens.Cahill will enter the final six months of his contract at the Reebok Stadium in the new year and Bolton are resigned to the fact that he will not agree new terms to remain at the club. That has left the Premier League strugglers seeking a fee for his services now in the hope that Owen Coyle will be able to sign a replacement in the January window, and Chelsea are confident the 26-year-old will resume at St...