Barcelona experienced an unexpected home defeat against Leganes, resulting in a reduction of their lead at the top of La Liga.
Hansi Flick's team now finds themselves only ahead of Atletico Madrid on goal difference, with a slim one-point margin over third-placed Real Madrid.
Leganes, now positioned 15th in the standings, took an early lead in the fourth minute when Sergio Gonzalez scored with a header from a corner delivered by Oscar Rodriguez, as reported by BBC Sports.
This solitary goal ultimately determined the outcome of the match.
Despite Barcelona's dominance, registering a total of 20 shots, their best opportunity came when Raphinha's half-volley from an Alex Balde cross struck the crossbar.
In earlier matches, Atletico secured a 1-0 victory over Getafe, allowing them to equal Barcelona on points.
Meanwhile, reigning champions Real Madrid played to a 3-3 draw against Rayo Vallecano last Saturday.
