Manchester City boss Sven Goran Eriksson says Manchester United and England will miss Wayne Rooney.
"Of course England have other quality players but it's a simple fact that in this country you don't have two Rooneys, you have only one.
"There are other good players but Rooney is Rooney and that's it."
Eriksson at least will not to have to plan how to combat Rooney in this weekend's Manchester derby.
But he added: "I feel very sorry for Rooney, he has had a similar injury to before the World Cup last year. It's unlucky and of course it's bad for Manchester United and it's bad for England."