Four additional forwards were called up for today’s Scotland training session in preparation for the start of the 2008 RBS 6 Nations Championship next month. Props Craig Smith (Edinburgh) and Bruce Douglas (Llanelli Scarlets), hooker Dougie Hall (Glasgow Warriors) and lock Scott Murray (Montauban) were added for the squad session at Murrayfield by head coach Frank Hadden.Four additional forwards were called up for today’s Scotland training session in preparation for the start of the 2008 RBS 6 Nations Championship next month. Props Craig Smith (Edinburgh) and Bruce Douglas (Llanelli Scarlets), hooker Dougie Hall (Glasgow Warriors) and lock Scott Murray (Montauban) were added for the squad session at Murrayfield by head coach Frank Hadden. Hadden enlisted the experienced quartet following matches at the weekend. Unable to train fully today were prop Euan Murray (calf), lock Jim Hamilton (ankle), No 8 Dave Callam (shoulder/neck) and flanker Kelly Brown (shoulder). Scott MacLeod (Llanelli Scarlets) took a limited part as he had played for his club in yesterday’s Heineken Cup tie against London Wasps. In addition Nathan Hines was not present today as he and his wife Leanne are undergoing fertility treatment.