Goals in each half from David Alaba and Lucas Vazquez saw Real Madrid win 2-1 at Barcelona in El Clasico on Sunday.
Alaba - making his Clasico debut - opened the scoring after 32 minutes with a thumping long-range strike, before Vazquez doubled the visitors' lead in second-half stoppage time.
Despite Sergio Aguero coming off the bench to score a late consolation for Barcelona on his Clasico debut too, Madrid hung on to hand Carlo Ancelotti his first managerial win at the Nou Camp.
As a result, Real went top of La Liga on goal difference from Sevilla and Real Sociedad, who travel to Atletico Madrid on Sunday night, while Barca stay eighth.
Both sides are next in action in La Liga on Wednesday, with Barcelona travelling to Real Vallecano (6pm), while Real host Osasuna (8.30pm).