Robert Acquafresca had given the Sardinian outfit a fourth-minute lead before Alberto Gilardino equalised on the hour mark.
Although Cagliari goalkeeper Marcos Fortin had saved Kaka´s first-half penalty strike, there was little he could do to stop Pirlo´s majestic effort with four minutes remaining.
Copyright (c) PA Sport 2007, 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