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Hansi Flick's side was wasteful at Estadi Olimpic Lluis Companys, but ultimately got over the line to make it seven league wins out of seven matches to start the season.

Barca was without a glut of stars due to injury, with Marc-Andre ter Stegen, who is set to be out for the rest of the season, joining Dani Olmo, Gavi, Frenkie de Jong, Ronald Araujo, Fermin Lopez and Andreas Christensen on the treatment table.

The Blaugrana also rested Pedri, though his absence was not felt as Lewandowski pounced on David Soria's error to put the hosts ahead after 19 minutes.

Barca had 16 attempts in total and mustered 1.92 expected goals, yet could not find a second to put the result beyond all doubt.

Winless Getafe, though, could not make Barca pay as it slipped to a fourth defeat of the season.