Barcelona earned a hard-fought 2-1 win over Real Betis to go eight points clear of Real Madrid in the La Liga title race.
Raphinha opened the scoring for Barcelona in the 65th minute after the first half ended goalless.
Robert Lewandowski added the second goal 15 minutes later.
Barcelona defender Jules Kounde diverted into his own net to reduce the deficit for Real Betis.
William Carvalho was sent off for Real Betis in the 90th minute.
Real Madrid have a chance to reduce the points difference when they take on Valencia on Thursday night.
Barcelona are now unbeaten in their last 14 games in all competitions.
“We played a great match,” Barca manager Xavi Hernandez told Movistar Plus.
“We have taken the ball away from Betis, which was one of the keys to the match. I’m happy with the result and with the way we played. We have improved.
“We are leaders. We are solid on defense. We are working well. The work pays off. We played one of the best games of the season. I am very satisfied.”
The Blaugrana will welcome Sevilla to the Camp Nou in their next league game on Sunday.