Wales are ranked 116th by FIFA and are bottom of Euro 2012 Group G having lost all three games, scoring a solitary goal. The only major tournament they have qualified for was the 1958 World Cup.
England, sixth in the world, are second in the standings on seven points from three matches, behind surprise pacesetters Montenegro, who have 10 points from a game more.
"England just looked, because so much was expected of them, tense, so tense," he said.
"Are England players scared? I remember Steven Gerrard, before playing Andorra, saying he didn't want to give the ball away because he was afraid of the boos."
Gerrard will miss Saturday's game through injury, as will centre back Rio Ferdinand.
The Manchester United man was at the centre of a media frenzy over manager Fabio Capello's decision to relieve him of the captaincy and hand it back to John Terry a little over a year after stripping him of the honour.
Terry has taken the limelight this week but it is likely to be the performance of England's strikers that is critical.
"We must win," Terry said. "Wales have had a bad start, conceding a lot of goals and not scoring too many - but they pose a real threat individually. They've got a good young squad."
Wales certainly have pace in their side, with Bellamy capable of causing England's defence problems.
"We need to win this game, I think it would boost us as a team and Welsh football in general," said Gareth Bale, who has made such an impact in the Champions League with Tottenham Hotspur but will miss the game against England through injury.
"I think we have got every chance. We've got great young players and a g
