Barcelona B keeper tries to fight Dani Carvajal after they beat Real Madrid, he's restrained

Barcelona went 12 points clear at the top of La Liga with 12 games to go after Franck Kessie's stoppage time winner against Real Madrid.

Their 2-1 win in El Clasico prompted huge celebrations at the Camp Nou – but it wasn't all joyous scenes, as the Barca backup keeper was involved in a flare-up with Real Madrid's Dani Carvajal.

Footage captured by a supporter in the stands and then posted onto social media, shows Barcelona B keeper Arnau Tenas approached by Carvajal on the pitch after full-time.

After a quick word, the pair are quickly at each other's throats, squaring up, with Tenas – the 21-year-old B team keeper who was an unused substitute in the game – furious with the Madrid full-back.

He can be seen trying to fight Carvajal with players from both sides storming in to separate the pair. Tenas tries numerous times to free himself from his restrainers to get at Carvajal, before Barcelona players guide him away.

It is not known what Carvajal said to spark the melee, but it was clearly something Tenas took issue with.

The 21-year-old has yet to make a senior appearance for the club, but he's already left his mark on an El Clasico – even when he should have been celebrating his teammates taking a giant leap towards the Spanish title.

It capped a dramatic Sunday night meeting between Spain's two biggest sides, with Real Madrid taking the lead after Ronald Araujo's ninth minute own goal. Barca levelled through Sergi Roberto and then Marco Asensio's goal was chalked off, before Kessie clinched all three points for his side.

Barcelona manager Xavi said after the game: "The league is not decided but it's a huge win of course.

"I think we deserved the win and we were better than Real Madrid, we created more opportunities."

Roberto added: "It's down to us and that's the most important thing. I'm just glad to have helped the team with a goal. It was epic at the end and I'm pleased for Franck to get the goal.

"The game swung when we thought Asensio had scored, it was ruled offside and we scored. It feels even better when you win with a late goal and it's fantastic to do so in front of our supporters."