Mitchells & Butlers (M&B), the pub, restaurant and lodges group, is to this week update the market on trading ahead of its full-year results, which are due at the end of this month. Shares were hit when credit market turmoil put an end to plans for a property joint venture with entrepreneur Robert Tchenguiz. Potential losses from the deal could hit £140m because of hedging arrangements put in place when the deal looked certain. The Sunday Telegraph 23/9/07 page B9 (The Week Ahead, Business) The Observer 23/9/07 page 8 (Market Forces, Business & Media)