Barcelona dropped points in LaLiga for a third successive game after being held by Athletic Bilbao.
Visitors Athletic led through Oscar de Marcos’ first-time finish at the back post from Markel Susaeta’s cross.
Lionel Messi appeared as a second-half substitute and struck the post as well as going close with a free-kick.
But sub Munir El Haddadi came to the rescue for the hosts, poking in a late equaliser from Messi’s low cross.
Brazil midfielder Phillipe Coutinho also struck a shot onto the crossbar and Luis Suarez was unable to convert the follow-up.
Ernesto Valverde’s side have dropped seven points in a week after being held by Girona last weekend and suffering a shock defeat by Leganes on Wednesday.
Barca are top of the table with 14 points after seven games but will lose their lead if Real Madrid beat Atletico Madrid in a city derby later on Saturday.