MADRID (AP) — Barcelona stumbled to a 3-2 home loss against Valencia on Saturday, giving Atletico Madrid a chance to move into sole possession of first place in the Spanish league.
The Spanish champion's decision not to sign a defender during the January transfer window may have backfired after Valencia took advantage of a lethargic, uninspired effort by its hosts at the Camp Nou, where former Spain coach Luis Aragones — who previously coached the Catalan side — was honored after his death on Saturday.
Barcelona led through Alexis Sanchez's eighth-minute goal but Dani Parejo equalized for Valencia before the break.
Pablo Piatti headed Valencia ahead after the restart before Lionel Messi's penalty — and first league goal since September — leveled the game again.
But Barcelona's defense let Sofiane Feghouli burst free into the area to set up Paco Alcacer's 59th-minute winner.
Barcelona played with 10 men from the 78th after Jodi Alba was shown a second yellow card.
The defeat means Atletico can lead the league alone for the first time this season if it does not lose at home to Real Sociedad on Sunday, when Real Madrid can also overtake its greatest rival with a victory at fourth-place Athletic Bilbao.
Also on Saturday, Levante and Rayo Vallecano played to a scoreless draw, as did Getafe and Valladolid, while Malaga rallied to beat Sevilla 3-2 in an entertaining encounter.
At the top of the standings, Atletico and Barcelona share 54 points, while Madrid has 53. Valencia provisionally moved into eighth.
Barcelona coach Gerardo Martino was preoccupied by Barcelona's drop in play after just half an hour.
"I'm always worried after every one of our losses," Martino said. "Despite us having played well for a while against Valencia, I'm very worried, much like the players are."
Messi set up the opener after slashing a pass across the box beyond the far post where Alexis connected oddly to float it over goalkeeper Diego Alves.
Valencia took control from the 44th when Parejo exploited a turnover inside the Barcelona half to lead a breakout with Feghouli, who returned a pass inside the area for Parejo to score easily.