BARCELONA — Barcelona’s teenage star Lamine Yamal and Raphinha both struck twice as the champions beat Rayo Vallecano 5-2 on Monday to continue their perfect start to the campaign.

Sergio Camello netted a brace for the visitors at Camp Nou but Hansi Flick’s Barca managed to record a third win from three matches from an entertaining battle.

With his first goal, Yamal, 19, hit the milestone of 50 for the club — two years younger than Barcelona icon Lionel Messi was when he managed the feat.

“I think the first half we played really fantastic, the goal, 1-0 against us, can happen but the reaction was quite good and I loved a lot of things I saw in the first half,” Flick told DAZN.

The Barca coach was not happy his team let Rayo score a second time when they were leading 3-1 in the second half.

“When you are 3-1 ahead especially at home you have to control the game much better,” explained Flick.

“We have the quality to control it, to have more ball possession. The mentality of our team and some players is always wanting to attack.”

Barcelona started brightly but fell behind after Jules Kounde allowed Alvaro Garcia to race beyond him.

The Rayo midfielder crossed for Camello to finish clinically first time into the top corner.

Stung, champions Barcelona hit back quickly with quickfire goals from Raphinha and Yamal.

Raphinha, who has played up front during the start of the season amid Barcelona’s failed battle to land Atletico Madrid striker Julian Alvarez, continued his rich vein of goalscoring form.

The Brazil international showed excellent footwork to leave Pathe Ciss for dead and then produced a cool finish.

Watching on from the stands was Arsenal striker Gabriel Jesus, poised to join Barca before the transfer window closes on Tuesday and clearly facing a battle with his compatriot to start up front.

“For me he’s a top striker and of course for us very important, he can give us a lot of things and very happy that he’s here,” said Flick of Jesus.