A Roberto Firmino strike, an own goal and Harry Wilson's second-half screamer overturned an early concession to ensure a positive end to the schedule ahead of 2019-20.
Jürgen Klopp used a host of players at Stade de Geneve - including appearances for Alisson Becker, Firmino, Naby Keita, Mohamed Salah and Xherdan Shaqiri.
See the story of the match in photos below...