La Liga leaders Barcelona fell to a shock 2-1 defeat at Real Sociedad on Saturday, a result that could dent their title momentum. Substitute Marcus Rashford pulled one back late, but it wasn't enough to salvage a point from a frustrating night for the Catalan side.

The loss marks Barcelona's first league setback since October, ending a remarkable 15-game unbeaten run. It also hands a crucial boost to Real Madrid, who now sit just two points behind the leaders with a game in hand. The defeat exposed defensive frailties Barça had largely masked during their recent surge.

For manager Xavi Hernández, the result is a stark reminder that the title race is far from settled. Barcelona must regroup quickly, with a crucial Champions League tie approaching. Real Sociedad, meanwhile, climb to sixth place, keeping their European ambitions alive with a statement victory over the league's pacesetters.