As Jurgen Klopp admitted, Liverpool’s defence must improve or they will have ‘real problems’ in the new Premier League season.
In losing 4-3 to Bayern Munich, they took their tally to 10 goals conceded in four pre-season games. Be it general sloppiness in individual duels, being dominated aerially from set-pieces or tactical vulnerabilities, it feels like Klopp will have boarded the long flight home from Singapore with more questions than answers.
Of course, pre-season is never a true barometer but the way that Liverpool conceded their four goals will surely have irked the manager.