Ronald Koeman got his Barcelona coaching career off to a perfect start with a comfortable 4-0 win over Villarreal on Sunday evening.
Ansu Fati started the goal fest on the 15th minute before doubling the advantage four minutes later, and further goals from Lionel Messi and a Pau Francisco Torres own goal gave the Catalans the win as they led 4-0 at half time.
Koeman named a strong, attacking side, with Fati and Messi joined by Phillipe Coutinho and Antoine Griezmann.
They got off to a perfect start and controlled the match from start to finish, with the attacking unit too much for the visitors to handle.
The first open chance fell to Ansu Fati in the 15th minute after a precise pass from Jordi Alba, with the youngster hitting a first-time shot into the back of the net.
He doubled the lead after Coutinho put him through, calmly finishing into the bottom left corner for a 2-0 lead.
Messi then got on the scoresheet as well from the spot, after Mario Gaspar committed a foul inside the box.
It got worse for the visitors as Torres scored an unfortunate own goal after he attempted to block a cross, and instead sent it inside the bottom left corner of his own net.
The second half was a quiet affair from both sides, even though Villareal scored a goal but it was correctly ruled out for offside.
Barcelona are bidding to reclaim the LaLiga title that they lost to rivals Real Madrid during the 2019/20 season.