Real Madrid picked up their first away points of the season with a 2-0 win at Rayo Vallecano in their rearranged match this evening.
The fixture was originally scheduled for yesterday but had to be postponed after a floodlight failure, which was apparently caused by some home fans cutting wiring from inside the stadium.
After collecting just four points from their opening four games, Madrid were in need of an improved performance against their local rivals.
Karim Benzema put them ahead on 13 minutes when he calmly converted Angel Di Maria's cross at the back post.
The Frenchman was denied a second on the hour mark when he was called back for a foul shortly before netting from close range.
Cristiano Ronaldo settled the result 20 minutes from time when he converted a penalty after Amat's handball in the area.
Madrid climb to seventh with the victory, eight points behind Barcelona, who have picked up maximum points from their first five matches.