Real Madrid showed why it is the defending La Liga champion with a convincing 2-0 home win over Atletico Madrid in the derby on Saturday to end the pacesetter's unbeaten start to the league season.

Real Madrid deservedly took the lead in the 15th minute when Casemiro headed home from a corner, leaving Atletico behind for the first time in its 11th league game of the season.

Dani Carvajal put Zinedine Zidane's side further at ease with a stunning strike in the 63rd minute which came off the post and into the net off keeper Jan Oblak for an own goal.

MATCH BLOG | La Liga highlights: Real Madrid beats Atletico Madrid 2-0

Atletico was utterly outplayed by the champion and did not have any attempts on goal in the first half, while it failed to manage a shot on target until the 80th minute, when Saul Niguez's header was saved by Thibaut Courtois.

Atletico still leads the standings on 26 points, while Real climbed to third and closed the gap on its city rival to three points, although Diego Simeone's team has a game in hand.

The result also means second-placed Real Sociedad can reclaim top spot if it beats Eibar on Sunday.

The win completed a remarkable week for Real after beating Sevilla in La Liga and Borussia Monchengladbach to progress in the Champions League and will further ease the pressure on Zidane after his outfit's relatively poor start to the campaign.

The Spanish champion was boosted by the return of first-choice right back Carvajal but Zidane also rewarded Lucas Vazquez for his outstanding efforts in deputising for the defender and deployed him as a right winger.

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The move gave Real extra intensity and work rate and Atletico could barely cope with the host's whirlwind start, as Karim Benzema forced Oblak to tip a stinging shot onto the post and moments latter narrowly failed to connect with a cross.

Real continued to dominate the first half and Simeone sprung a triple change at the interval in a bid to give his side some control of a match that was slipping from its grasp.

The move almost bore fruit as substitute Thomas Lemar ghosted in unmarked at the far post from close range to meet a cross but somehow hit the side-netting, and Simeone was howling in disbelief on the sidelines at a glorious chance gone to waste.

Carvajal then delivered an emphatic counter punch to put the game out of Atletico's reach and although the visitor reacted well it never looked like staging a comeback.