O'Sullivan fears strict interpretation of rules

Eddie O’Sullivan is fearing a penalty backlash if Ireland’s RBS 6 Nations meeting with Scotland falls foul of the new International Rugby Board breakdown laws tomorrow.

O'Sullivan – who suffered his first hammer blow of the championship yesterday as captain Brian O’Driscoll was ruled out of the Murrayfield trip with a troublesome hamstring – knows his forwards will have to up the ante at the breakdown battle.