Barcelona had their title dreams dented by a 3-1 defeat to a Real Sociedad side, inspired by Antoine Griezmann, on Saturday night.
The 22-year-old Frenchman, who is reportedly a target for Manchester United, Arsenal and Chelsea, scored one and made another as Barcelona were overtaken at the top of the La Liga table by Real Madrid.
This season's race to be crowned La Liga champions is hotting up with Madrid sitting three points ahead of both Barcelona and Atletico Madrid, altough Atletico can go level with their city rivals when they face Osasuna tonight (Sunday).
Gerardo Martino's men travelled to 5th placed Real Sociedad hoping to claim their first win in San Sebastian since the 2006/2007 season.
With Madrid having already beaten Elche 3-0, Barca knew they needed a win to regain top spot but things didn't go to plan for the Catalan giants.
Alex Song was making a rare appearance in the starting eleven but shortly after the half hour mark he may have wished he was back on the bench as he headed into his own goal to give the hosts the lead.
Within four minutes Lionel Messi had spared his teammates blushes, equalising from 18-yards out with a low shot into the corner.
The score remained level at the break but the second half saw Griezmann show exactly why he's been linked with some of the Premier League's top clubs.
Ten minutes after the restart Griezmann tapped home from a Carlos Vela pass to notch his 15th league goal of the season.
Barely five minutes later the home side extended their advantage, with Griezmann turning provider for David Zurutuza to finish beyond Victor Valdes.
The defeat puts pressure on Barcelona to keep intact with the teams from the capital, while Griezmann done his ever-growing reputation no harm at all.