Real Madrid beat Barcelona 2-0 at Santiago Bernabau to move above in the La Liga table. Vinicius Junior in via a deflection in a second half packed with chances after Isco saw a shot saved and an effort cleared off the goalline.
Mariano had not played a single minute in La Liga for Zinedine Zidane’s side this season until being brought off the bench in injury time to seal a memorable win.
Los Blancos finished third last season – 19 points behind champions Barca – but the tight nature of the title race this time around placed added significance on the fixture in the Spanish capital.
Zidane had said his side were in a “delicate moment” as a result of picking up one point from their last two league matches and having suffered a home defeat to Manchester City in the Champions League in midweek.