Raphinha scored first in the 20th minute and had two more chances before halftime as Barca dominated their rivals, who were well below their usual level
Michel Sanchez's team secures 10th win in 12 league games, increasing pressure on Real Madrid for the top spot; Real Madrid must win against Rayo Vallecano to reclaim the lead.
Real Madrid secures second place with a 2-0 victory against Las Palmas at home. Brahim Diaz, in his first start of the season, justified his inclusion by scoring just before half-time.