Liverpool’s final friendly of pre-season ending in a 4-0 defeat to Mainz 05, with a disjointed Reds side struggling to compete. Mainz 05 4-0 Liverpool Pre-Season Friendly, Opel Arena Sunday, 7 August 2016 Goals: Brosinski 15′, Cordoba 45′, Malli 60′, Muto 75′ Klopp’s return to Mainz saw him lead Liverpool out against the side where he began his managerial career, as he looked to round off a positive pre-season for the Reds.