England captain Mike Tindall (pictured) demanded his men "explode out of the blocks" in this evening's pivotal Six Nations showdown with France at Twickenham.
England and France lock horns in 'Le Crunch' as the only two remaining unbeaten teams in the championship.
One of them will have their Grand Slam dreams wrecked by 7pm tonight.
France are the reigning champions and boast world-beating potential but they are also notoriously fragile, particularly on the road.
Les Bleus have managed just one championship victory at Twickenham in their last six visits.
Two years ago they imploded as England roared into a 29-0 half time lead.
"We will try and explode out of the blocks, impose our game and contain them from the start," Tindall said.
"You don't know which French side will turn up -- but you do know that if they play as well as they can they are the world's best.
"If you have a bad start they pick up momentum and can be very hard to stop. You have to get on top of them."
James Haskell plays his club rugby in France and knows from first-hand experience what will hit England if they fail to follow Tindall's orders.
"If you allow them to get their heads up and play, allow them to get that emotional factor flowing that a lot of French teams have, it is very difficult to play against," Haskell said.
"They are going to be in our faces, making big hits -- and we dare not back off."
England have made one change from their victory over Italy, with Andrew Sheridan fit to start at loosehead prop.
The French have brought Yannick Jauzion back at centre and start with Sebastian Chabal in the back row and Dimitri Yachvili at scrum-half.