Barcelona received a dose of their own medicine, as they suffered a huge defeat at the hands of Celta Vigo at Balaídos on Wednesday, with the visitors outplayed in all facets of the game. The 4-1 loss also was Barca's worst loss in over seven years.

Celta Vigo, who deserved the victory after a brilliant display, are one of the only three teams still undefeated in the La Liga, while Barcelona suffered their first loss of the season after winning their first four games on a trot. This was also Barca's first loss in the league since February.

With this victory, Celta are second in the standings table. They have been great this season, but their real test lies in maintaining this form throughout the season against quality sides.

Though there are more than 30 games left to play, this loss could act as a perfect wake-up call for the Catalans, who possess some of the finest players in the world, including the attacking trio of Lionel Messi, Luis Suarez and Neymar. The trio failed to shine against Celta, though, even if Neymar came up with a consolation goal in the 80th minute.

For the home team, it was the former Liverpool striker, Iago Aspas, who scored a brace, and former Barca player, Manuel Agudo Nolito, who found the back of the net in the first half to hand them an impressive 3-0 lead at halftime.

The home fans, who were thrilled to see their team dominating the champions, gave the Celta Vigo players a standing ovation after their first half display. John Guidetti scored the fourth goal for Celta in the 83rd minute.

Celta Vigo troubled Barcelona with their constant counter-attacks, which the visitors could not cope with. Barcelona midfielder, Sergio Basquets wants his team to learn from their mistakes and prepare better for the next match.

"We have to turn the page, learn from our mistakes and prepare for the next match," said Basquets.

"We have to be more careful with counter-attacks and get things right up front. The ideal tonic now would be to win on Saturday against Las Palmas at the Camp Nou. There is a long season ahead and we had won every game up until now. We'll get back to our winning ways on Saturday."