Neymar and Lionel Messi were on target as Barcelona eased their way to a 2-0 win at local rivals Espanyol to increase their grip on top spot in the Primera Division.
Brazilian Neymar struck after 16 minutes put Barcelona on their way to victory, with Messi scoring from a tight angle nine minutes later to double the lead.
The only negative for Luis Enrique's side was the sending off of Jordi Alba for earning two quick bookings, but the league leaders continued playing as though they had an extra man and could have extended their lead.
Atletico Madrid comfortably beat Elche 3-0 at home to resume normal service after being eliminated from the Champions League by Real Madrid in midweek.
The visitors came through the first half unscathed but fell behind to Antoine Griezmann's header on 55 minutes. Raul Garcia doubled the lead before Griezmann pounced again, scoring a double for a third consecutive league game.
The win sees Atletico tighten their grip on third spot, while Elche remain in 14th place, six points above the relegation zone.
Victor Casadesus scored the only goal as strugglers Levante claimed a valuable 1-0 win at Getafe in Saturday's game at Coliseum Alfonso Perez.
Casadesus broke the deadlock in the 35th minute and Lucas Alcaraz's side held on to claim three valuable points in their quest to avoid relegation.
Levante started the day just one point clear of the bottom three, but the win over 13th-placed Getafe boosted them above Eibar and into 15th place.
An under-strength Villarreal bossed their encounter against Real Sociedad on Saturday evening but left the Anoeta with just a point after a goalless draw.
Victor Ruiz's disallowed goal two minutes from time was as close as either side went to breaking the deadlock, his header from Jonathan dos Santos' free-kick dubiously ruled out for offside. Ruiz was onside, with team-mate Tomas Pina having slightly strayed.
Sociedad goalkeeper Geronimo Rulli stood firm amid the Villarreal onslaught, with opposite number Sergio Asenjo on hand seven minutes from time to keep out the hosts' best attempt from Gonzalo Castro.