England captain Mike Tindall has demanded his men "explode out of the blocks" in their pivotal RBS 6 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 on Saturday night.
"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. You can do that by giving them nothing and really putting them under pressure in that first 20 minutes."
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.
"France are specialists at two things. If you turn ball over against them or give them cheap kicks and returns, they will tear you apart," Haskell said.
"And 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.
"Our game is more structured than in France where emotions play a bigger role. So if you get into them straight from the start, and make it is as difficult as possible for them to settle, you can start imposing your own game.
"I play with and against these guys - the likes of Sebastien Chabal and Imanol Harinordoquy - and they're already talking about how to deal with the English. Believe me, this will be a very emotional occasion. They are going to be in our faces, making big hits - and we dare not back off. It is going to be a fantastic battle."