Sir Clive Woodward has claimed that Twickenham will play a key role in England's bid to win the World Cup.
The hosts kick off their Pool A campaign against Fiji next Friday, and despite suggesting that not looking past the opening game could be a big challenge, Woodward believes that the intimidation factor at Twickenham could prove to be pivotal.
"The Twickenham factor is huge. Someone has to come to Twickenham and beat England," the World Cup winner told Sky Sports News.
"But you have to go game-by-game-by-game. All their thought processes are on Fiji. I wouldn't let anyone talk about Wales, Australia etc.
"Beat Fiji, then talk about Wales. You have to keep everyone on their next game. So if they play all their games at Twickenham they have a chance."
Stuart Lancaster's side will also take on Uruguay in Pool A.
