Barcelona closed the gap on La Liga leaders Real Madrid to two points after a 4-0 victory at Eibar.
Substitute Denis Suarez scored his first senior club goal before Lionel Messi, Luis Suarez and Neymar scored in the second half but Luis Enrique's side rode their luck early on against their spirited hosts.
Goalkeeper Marc-Andre ter Stegen saved from Adrian before Suarez opened the scoring but Barca's victory was marred by an ankle injury to Sergio Busquets.
The midfielder lasted just 10 minutes before...
Barcelona's 10-year winless run at Real Sociedad's Estadio Anoeta is finally over after a 1-0 win in a first-leg quarterfinal of the Copa del Rey on Thursday.
Neymar's 21st-minute penalty was all the defending champs would need to take the slim lead back to the Camp Nou for next week's second leg.
It was the Brazilian who won the spot kick just after the quarter-hour mark when his quick feet tricked Aritz Elustondo into a foul in the box. The Barca No. 11 then calmly sent La Real goalkeeper...