Manuel "Nolito" Agudo opened the scoring in the 25th minute at Celta's Balaidos Stadium with a lofted shot that Barcelona goalkeeper Marc-Andre ter Stegen got his fingertips to, but couldn't keep out. It was the midfielder's fifth goal this season.Barcelona conceded again three minutes later when Aspas pounced on a terrible pass by Gerard Pique, raced forward and lifted the ball over Ter Stegen.
Aspas then sprinted up the field and side-footed the ball past a stranded Ter Stegen in the 55th.
Neymar pulled one back by powering in Lionel Messi's pass in the 80th, but John Guidetti made it 4-1 three minutes later.
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