The Italian champions had been unbeaten for five months going into the game, but Liverpool dominated from the start.
Materazzi's red card on the half hour mark made it even harder for the visitors but it was the arrival of Peter Crouch that stirred things up.
Kuyt's goal may have been deflected, but it was deserved. Gerrard's strike was wonderful and gave Liverpool a good advantage going into the second leg in three weeks time.
