Barcelona were handed a shock defeat in their third Spanish La Liga match when they went down 2-1 to newly promoted side Alaves.
Deyverson puts Alaves in front in the 39th minute after he got to the end of a low cross and finished well.
Barcelona went level through Jeremy Mathieu just after halftime with a header after a corner.
In the 64th minute Ibai Gomez struck the winner shooting into the far corner. Barcelona threw everything at Alaves in the remaining minutes but the visitors defended well to claim a memorable three points