John Terry says no stone will be left unturned in World Cup preparation.

John Terry has assured England fans the Three Lions will be fully prepared and ready to roar once they face the United States in their opening game of the World Cup in Rustenburg.

Fabio Capello’s side had to come from 1-0 down to beat Japan in their final pre-tournament warm-up game and needed two own goals to complete the victory.

But while Terry admits there were aspect to improve on in Graz he is confident things are heading in the right direction, especially after the team’s second-half performance.

Terry said: “The first half against Japan was probably a little bit slow with the tempo we played but the second half was a lot better with the way we pressed, which was what the manager wanted.

“The manager will have us ready I’m certain of that. The attention to detail he shows, even after matches, stressing we need to work on new things, is great. He leaves no stone unturned. So when we go to South Africa we’ll be fully prepared.”

England’s players were given permission to spend time with their families yesterday (Monday) having flown back from Austria following Sunday’s friendly match.

But they leave for their World Cup adventure in South Africa on Wednesday night and Terry has high hopes for a successful tournament.

"With a bit of luck and with everybody fit we’ve got as good a chance as anyone," he insisted.

The good news for England, too, is that Terry is fit to travel despite giving everyone a scare when he picked up an injury against Japan.

The nation held its breath as he crouched on the floor nursing his leg but Terry, who completed the match, insists it is nothing to worry about.

“I’m fine, “he said. “I just got a kick on the calf as I went for a header. My calf tightened up but it was just a little bit of cramp in the end and nothing to worry about.”