This is the first time Hansi Flick's team has lost in 12 games.
Real Sociedad defeated Barcelona 2-1 in the Spanish La Liga on Sunday, ending Barcelona's title hopes. It was the first time Hansi Flick's team had lost in 12 games.
The result leaves Barcelona's lead at the top of the table at just one point. They have 49 points, while Real Madrid are second on 48. Mikel Ayrizabal and Gonzalo Guedes scored for Sociedad.
Marcus Rashford pulled one back for Barcelona. Sociedad have moved up to eighth place on 24 points. Earlier, Atletico Madrid defeated Deportivo Alaves 1-0. Atletico are fourth on 41 points.
