Celta Vigo held Barcelona to an entertaining 2-2 draw at Camp Nou.
Barcelona created the first moment of danger through Lionel Messi, picking up a loose ball inside his own half and embarking on a run that eventually brought a corner.
But the visitors stunned the Camp Nou when Iago Aspas opened the scoring 20 minutes into the match, but Barca were level within two minutes through Leo Messi.
Three minutes later Suarez thought he had put the Liga leaders in front, only for an offside flag to deny him after Messi had provided the through ball.
Paulinho had a chance to put Barcelona ahead early in the second period but, after rounding Blanco when put clean through, hit the side netting from an angle.
Luis Suarez finished a smart move just after the hour mark to put the hosts in front.
Twenty minutes from time, however, the scores were level again as Iago Aspas raced down the right, Samuel Umtiti appearing to pull a hamstring as he tried to track him, and his cutback was smashed into the roof of the net by Maxi Gomes.
Messi missed a good headed chance to win the game for Barca, then fired a free-kick over with the last kick of the game; at the other end Pione Sisto brought an excellent save from Marc-Andre ter Stegen.