Villarreal tightened their grip on fourth place in La Liga when Nigerian forward Ikechukwu Uche's last-gasp strike snatched a 1-0 win at fellow promoted side Elche on Monday.
Barcelona closed to within two points of leaders Real Madrid after thumping Levante 5-1.
Villarreal's slide continued as a Diego Castro header gave Getafe a 1-1 draw in La Liga on Sunday but the match was overshadowed by a serious injury to Mateo Musacchio.
Villarreal landed a stunning blow on a potential rival for a European qualification berth when Giovani dos Santos and Ikechukwu Uche each struck twice in a 5-1 drubbing of Real Sociedad in La Liga on Monday.
Antoine Griezmann headed two goals for Atletico Madrid in a 3-1 victory over Levante that kept them on the heels of La Liga leaders Real Madrid on Saturday.