England World Cup winner Gordon Banks has urged Manchester United striker Wayne Rooney to reign in his temper.

Banks urged Rooney to be on his best behaviour.

"Imagine getting sent off for swearing at the referee! That's the most ridiculous thing ever. If that does happen in the World Cup that would be stupid. It would be really silly," Banks said.

"This season he has played absolutely fantastically for Manchester United. He really has been outstanding but at the same time I thought, like a lot of people, that he had got over that, that silly 'I have to kick him or chase somebody to kick them' idea.

"It's only because it was in a friendly that they let him get away with it yesterday.

"The officials won't mess around in this competition. If he does that in the World Cup then he'll get sent off.

"If he does that in a big game when we're winning and we get knocked out then that would be an absolute disaster."