Grand Slam-chasing England moved within touching distance of a first Six Nations rugby title since 2003 by squeezing past Scotland 22-16 in an error-strewn match at Twickenham on Sunday.
The sides were level 9-9 at halftime but England scored 10 points - through Toby Flood's fourth penalty and a converted try by Tom Croft - while the Scots were down to 14 men to go 19-9 up with 13 minutes left.
Scotland winger Max Evans' well-taken try in the 74th set up a tense finale but England held on for a fourth straight win, despite failing to impress.
If Martin Johnson's men beat Ireland in Dublin next week, they will clinch the Grand Slam.
Only second-place Wales can stop England landing the title.