Joe Hart has called upon the England squad to improve ahead of their opening game of Euro 2012 against France a week on Monday.
The Manchester City goalkeeper was speaking after England were pushed hard during their 1-0 win over Belgium at Wembley this afternoon.
"[It was] a really tough game," Hart told ITV Sport. "I thought we were bitty at times but it is good to get the result against a very, very good Belgian side. We are very resilient.
"I think we need to improve in all areas. We are good side and we need to have really, really high standards."
England have not conceded a goal in Roy Hodgson's two matches in charge.
