Costa leads Atletico to stunning Madrid Derby win

Club record

Real Madrid's Cristiano Ronaldo (L) reacts during their Spanish first division soccer match against Atletico Madrid at Santiago Bernabeu stadium in Madrid, Sept 28, 2013. [Photo/Agencies]

Earlier, Barca created a club record start to a league campaign with a 2-0 victory at promoted Almeria.

World Player of the Year Lionel Messi struck the opener after 21 minutes with a wonderful solo effort but was forced to leave the pitch soon after with a hamstring problem.

"Lionel has a little muscle problem in his right leg, something he did while scoring his goal," Barca coach Gerardo Martino told a news conference. "Until they do the tests we won't know anything more."

After a shaky spell just before halftime, Barca doubled their lead when Cesc Fabregas squared for Adriano to slide in and divert the ball into the corner to continue the home team's winless start to the season.

"All I have done is profit from what these guys have achieved," Martino told a news conference about the club record.

"They have been breaking records for years. Mine is merely circumstantial."

Valencia continued to recover from their poor start to the season with a 1-0 home win over basement side Rayo Vallecano.

Brazilian striker Jonas pounced on an error in the Rayo defence to net the only goal after 37 minutes, earning Miroslav Djukic's team a third consecutive victory that put them sixth with 12 points.

Real Sociedad are ninth with seven points after a 1-1 draw at home to Sevilla.

Antoine Griezmann levelled for Sociedad in the 66th minute to cancel out a great finish from Jairo in the 18th.

The Basques have now gone six games in La Liga and the Champions League without a win.