Wales are chasing back-to-back Championship titles outright for the fifth time - and the first since 1979. Previous doubles were clinched in 1908/09, 1965/66, 1975/76 and 1978/79.
Wales haven't conceded a try in the past 277 minutes. That is six minutes longer than in last season's Grand Slam and 421 minutes short of England's 6 Nations record between 2003-04.
Mike Phillips will overtake Dwayne Peel to become Wales's most capped scrum half today when he makes his 77th appearance.
England have secured one more Grand Slam than Wales - 12-11
England lead Wales 56-55 in all matches since 1881
England are one ahead of Wales in outright Championship titles - 26-25
Wales lead England 53-51 in wins in the Championship and 207-204 in tries.
Wales have lost their last five matches at the Millennium Stadium - their worst home record in Cardiff.
Victory in Scotland by 28-18 gave Wales a record fifth Championship away win.
Cardiff will host its 14th Grand Slam decider today - more than any other city in Europe - and if England win it will be the 10th time the feat has been achieved in the Welsh capital..
England have never won a Grand Slam in Wales, but secured the Triple Crown in Cardiff in 1997.
Wales leads the cap count today - 647-290
Nine England players have started every game in the RBS 6 Nations - Goode, Ashton, Barritt, Cole, Launchbury, Parling, Robshaw and Wood.
This is the 12th occasion on which Wales have played against a team chasing the Grand Slam. They have won 6 and lost 5 of them.
England coach Stuart Lancaster has never lost an away game in the RBS 6 Nations.
Wales interim coach Rob Howley is hoping to notch his first home win in the RBS 6 Nations.
Wales have won their last 3 matches and England their last 5.
Wales have the best tackle completion rate in the RBS 6 Nations with 93% of their 458 tackles.
It is 4-4 between Wales and England at the Millennium Stadium.
Australian referee Steve Walsh will be controlling his fourth Wales v England 6 Nations match today. He was in the middle at Twickenham last year when Wales won the Triple Crown.
Gethin Jenkins captains Wales for the fifth time today. He has never lost as captain in the RBS 6 Nations.