The champions of Europe started their 2019-20 domestic action with a resounding 4-1 victory over the top-flight newcomers at Anfield.
Origi, a goalscorer during the Champions League final triumph over Tottenham Hotspur back in June, was again on the scoresheet when he netted the Reds' fourth after a Grant Hanley own goal and efforts from Mohamed Salah and Virgil van Dijk.
Speaking to Liverpoolfc.com shortly after the final whistle, the No.27 said: "It was very important for us to continue the good work that we did in the pre-season and also from last year.
"As a first game, we wanted to make another step from the game against [Manchester] City and obviously winning 4-1 against a very good team is good for us.