Ronaldo made the breakthrough in the Stadio Olimpico with a brave header in the first half for his 36th of a remarkable season.
Rooney then extended their lead when he took advantage of a mix-up between goalkeeper Doni and Christian Panucci.
Copyright (c) PA Sport 2008, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: http://gms.to/writeforgms