Chris Paterson has warned England that Scotland are in their most confident mood for years ahead of the Calcutta Cup clash at Murrayfield.
The Scots claimed an excellent win over France on the opening day of the RBS 6 Nations Championship before losing 28-18 to Wales in Cardiff.
However, Andy Robinson's team are beginning to find their own form again following wins over Wales and Italy so far this year.
But, despite England chasing the Grand Slam, the Edinburgh Gunners man is convinced Scotland can upset the odds if they take their natural confidence into the game.
Paterson said: ''We have to be confident. England are the only team who can win the Grand Slam and we would love to stop them doing that.
''But they are a better team than they have been in the last two occasions we have faced them.
''After the World Cup, quite understandably, there was some fall-out with some players retiring.
''But they are now looking forward to the World Cup next year and they are a far stronger team than they have been.
''Physically, they will try to dominate us, we know that, because they have a massive forward pack.
''But their backs are underestimated and, as a unit, they can win games single-handedly. However, the tendency from England is to win the game physically and then use the backs.
''But, while they have a pretty formidable unit, we are confident.
''We will have to play a game which is suitable for what they are going to do to us and we are confident we have found it.''
He added: ''Without a shadow of a doubt, this is the most confident we have been for the Calcutta Cup in the last few years.
''But we have to take that confidence into the game. We have felt confident before every game we have played in the last two years.
''However, it is an easy thing to say and it is all about taking that confidence on to the field.
''We were confident before France and nobody really believed us because they had heard it before.
''So it is what we do on the field which will show how confident we are.''