Barcelona left-back Jordi Alba admitted Eibar made Ernesto Valverde’s side “suffer” as the visitors claimed a 2-0 win on Saturday.
Eibar came into the game in good form and put in a spirited showing as they forced Barcelona back.
However, Luis Suarez put Barcelona ahead and then Eibar were reduced to 10 men after Fabian Orellana was sent off for a second bookable offence.
Alba made the game safe late on but admitted it had been a tough test at Ipurua.
“Eibar are a very difficult team who know how to play and make it difficult for you,” he said.