Manchester United go to the San Siro tonight in the first-leg of their Champions League clash.
Ronaldinho said: "People think United are just about Rooney. But that's not true. He's on a sensational scoring run but it will be in midfield where we have to dominate. Besides, Rooney is a big player but our defenders are the best in Europe. Then there is Beckham. He is more focused than ever."