The Catalan side may have lost the domestic Super Cup to Real Madrid in midweek but they have now picked up maximum points from their first three league games that keeps them top of the table.
It also maintained their five-point lead over defending champions Real.
Barcelona full-back Adriano’s drive from outside the area after 23 minutes was the only goal of the game at the Nou Camp against a Valencia side who battled hard but spent most of the game defending deeply.
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