Barca crowned champions
Barcelona began the season with a stretch of six straight victories.
Barcelona picked up its dropped its first three points in a 2-2 draw with Real Madrid.
Real Sociedad celebrate being the first team to beat Barcelona this season.
Lionel Messi breaks Ger Muller's mark for most goals in a calender year aginst Betis.
Lionel Messi scored in a record-breaking 19th straight game for Barcelona though Celta Vigo pegged them back to draw 2-2.
Barcelona falter 2-1 in the El Clasico fixture at the Bernabeu.
Barcelona are undefeated at home in La Liga this season.