Atletico Madrid romped to a 5-0 win at Levante, which put them back above their city rivals Real into third place.
Atletico, who drew 0-0 at home with Real last weekend, went ahead after just five minutes following an own goal from Levante defender Roberto Suarez Pier.
Kevin Gameiro doubled the visitors' lead with a close-range finish on 29 minutes after Angel Correa had rounded the keeper and seen a goalbound shot blocked.
The French forward got his second of the night just before the hour when picked out in the penalty area by compatriot Antoine Griezmann.
Atletico striker Griezmann then got in on the act with a double of his own, scoring twice in the space of three minutes.
First Griezmann slid in at the far post to convert a low cross through the six-yard box from Gameiro on 65 minutes.
Griezmann was then in the right place to net again after Gameiro's shot had been saved following a break down the right, to cap an impressive away performance.
Diego Simeone's team will next face Elche in the second leg of their fourth-round Copa Del Rey tie.