Barcelona extended their lead at the top of the table to seven points with a hard-fought 1-0 win away to stubborn Leganes thanks to an own goal by defender Jorge Saenz on Saturday that took their unbeaten LaLiga run to 12 matches, Reuters reported.
Hansi Flick's side moved to 70 points above second-placed Real Madrid, who have 63 and visit Alaves on Sunday.
"For us today was a very difficult game but winning was very important. I am proud of what my team is doing in the last few weeks and months," Barca boss Flick said.
"We need to work on our defence and attack. But we've got three points and that's what's important," he added.
In a tense first half, the hosts could have taken the lead when Dani Raba's pass found Adria Altimira in the box, but Barclona goalkeeper Wojciech Szczesny was on hand to deny him.
Barca also threatened when Jules Kounde beat Saenz to the ball before firing wide, according to Reuters.
The deadlock was finally broken after the break when Barca took the lead after Raphinha's cross for Robert Lewandowski was inadvertently deflected into the net by Leganes defender Saenz.