Antoine Griezmann proved Barcelona can win without Lionel Messi and do without Neymar too after he scored twice in a 5-2 demolition of Real Betis on Sunday.
Griezmann tossed confetti into the air as he celebrated his second at Camp Nou, where he was the star performer, if only for a night in the absence of Messi, who is still short of fitness.A brilliant Barcelona performance delivered a resounding response to the doubts from their defeat to Athletic Bilbao last weekend, among them a reliance on Messi, the need for Neymar and the future of Ernesto Valverde as coach.
But as Carles Perez, Jordi Alba and Arturo Vidal made it three, four and five, the gloom was forgotten, along with Nabil Fekir's opener in the 15th minute, that had Betis level at half-time.
Loren Moron slammed a stunning strike into the top corner for Betis late on but by then the game was up as Barca ensured no more ground was lost on Atletico Madrid, who beat Leganes 1-0 earlier on Sunday, or Real Madrid, who were held to a 1-1 draw on Saturday by Real Valladolid.
Barcelona will hope to have Messi back for the trip to Osasuna next weekend but with Luis Suarez and Ousmane Dembele both out for longer, Griezmann's statement display was timely.
This was his first goal at Camp Nou in 14 appearances, five of them for Real Sociedad and eight for Atletico, and his overall performance was of someone ready to lead, rather than serve merely as a foil for Messi.
Suarez and Messi were in the crowd, who enjoyed a goal from the 21-year-old Perez, making his first start, and a substitute appearance from Anssumane Fati, who at 16 became the second youngest player ever to play for Barcelona in La Liga.Sergio Busquets was at fault for Betis' opener as he gave the ball away, allowing Fekir to drive into the corner.
But Barca looked dangerous and were undeterred, even if Gerard Pique, on his 500th appearance for the club, was lucky to escape only with a yellow card when he fouled Loren as the last man.
Rafinha missed an excellent chance to equalise before Griezmann took over, volleying in on the stretch four minutes before half-time, past the weak hand of Dani Martin.
If Griezmann's first owed something to the goalkeeper, his second was unstoppable. He collected the ball 25 yards out and used Sidnei as a marker to bend his shot around and into the far corner.
Griezmann ran to the corner where confetti was poured into his hands. He tossed it into the air above his head.
Barca were relentless as Perez drove into the bottom corner and Alba made it four, latching onto a superb Busquets pass inside the full-back.
There was still time for two scintillating strikes, the first from Vidal, who was slid in by Griezmann, and the second by Loren, who was given too much space. It was no more than a consolation.
Barcelona stay behind Atletico, who maintained their perfect start with another 1-0 victory, this time over Leganes as Vitolo came off the bench to score a second-half winner at Butarque.
After beating Getafe last weekend by the same scoreline, Atletico have begun the season in familiar fashion, with efficiency trumping invention despite an ambitious set of summer signings.
Joao Felix, Atletico's 126 million-euro ($140 million) buy from Benfica and much-hailed replacement for Griezmann, was quiet again but again delivered the match's most memorable moment.
The 19-year-old's perfectly-timed pass provided the assist for Vitolo while Felix had been picked out by Kieran Trippier, who was faultless on his second Atletico start.