Germany coach Joachim Low says he's well aware of the form of Manchester United striker Wayne Rooney.

Low knows Rooney and England will be a major force at this year's World Cup.

"Wayne who? Wayne? Wayne? Who is that?" said Low smiling. "No, I know him all right. He's one of the best strikers in the world.

"I don't say who is best because players are different. Ronaldo is among the best, but very different.

"Rooney is in unbelievable form. Whether it is the English League, the Champions League or for his country, nobody can stop him at the moment.

"My feeling when I see him is that he is unstoppable. He has everything."