England coach Sven-Goran Eriksson has warned fans that England could be thrown out of EURO 2004 if their followers misbehave.

“England is unique in having a warning from UEFA hanging over us,” he said.

“We have been shown the yellow card – we cannot afford any more problems,” warned the England coach.

Eriksson warned England followers that any trouble coul d result in the team’s expulsion.

“There is so much going on to ensure that events off the field of play do not jeopardise our fortunes on it,” he added.

“This must not happen; for the players, for the vast majority of decent fans, for the nation as a whole.

“The image of our game, and the country, would be damaged beyond imagination.

“No other country enjoys such huge support when it travels, and it gives the players an enormous lift.

“I hope the supporters conduct themselves as they did at the World Cup. They left such a positive image – dedicated to their team, respectful to their hosts.

“We want to show England in the best possible light,” he said.