News of all that's transpired on and off the football field
The victory saw the unfashionable Madrid club tighten their grip on the coveted fourth spot in the table by moving on to 58 points after 36 games, three points clear of nearest challengers Sevilla, who lost to Leganes on Friday.
A much-changed Real Madrid ground out a 2-0 victory at third-tier Fuenlabrada in their King's Cup last-32 first leg on Thursday, needing two dubious penalties to break down their stubborn hosts as both sides finished with 10 men.
Barca dominated possession and Luis Suarez had several early chances but it was Villarreal who took the lead with Denis Cheryshev redirecting a Mario Gaspar shot past keeper Claudio Bravo on the half hour.
Lionel Messi was in inspired form as champions Barcelona hammered Celta Vigo 5-0 on Saturday, recording a fourth straight league victory which keeps them top of La Liga after Real Madrid had put the pressure on the Catalans with a 4-1 win at Eibar.
'I feel as confident and motivated as at the beginning. I can't control rumours, but I still have faith'
Barcelona suffered a first home defeat of the season when they lost 3-2 against Valencia after finishing with 10 men in La Liga on Saturday, leaving the door open for Madrid rivals Atletico and Real to move above them.
Chelsea, Bayern Munich, Real Madrid and Juventus consolidated their top-flight leads at the weekend while Paris St Germain proved too strong for Ligue 1 leaders Olympique Marseille.
Hegerberg hat-trick fires Lyon to fourth straight Champions League
Lopetegui blends youth and experience in Spain World Cup squad
Barcelona's rampant trio of Neymar, Luis Suarez and Lionel Messi all found the net at the weekend and unsung Leicester City found themselves in the record books when their England striker Jamie Vardy scored for the 11th straight game.
Cristiano Ronald headed his 300th goal for Real Madrid in a laboured 2-0 La Liga victory at neighbours Rayo Vallecano on Wednesday that kept the gap on leaders Barcelona down to four points.
Lionel Messi came off the bench to preserve Barcelona's unbeaten run in La Liga with a sensational late equaliser in a thrilling 2-2 draw at Sevilla on Saturday as the runaway leaders came back from two goals down in the space of a minute.
News of all that's transpired on and off the football field
Paris St Germain's Zlatan Ibrahimovic scored his first Ligue 1 goal this season before missing a penalty as they beat En Avant Guingamp 3-0 to extend their lead to four points on Tuesday.
Diego Costa continued his rich vein of form as he helped leaders Chelsea to a 3-0 win over Aston Villa while Louis van Gaal enjoyed only his second Premier League win as Manchester United manager following a 2-1 victory against West Ham.
Spain coach Vicente del Bosque has called Atletico Madrid's Brazil-born forward Diego Costa into his squad for the first time for this month's friendlies away to Equatorial Guinea and South Africa.
Barcelona look well set to wrap up the La Liga title.
Real Madrid were the big winners in Spain as their success at Almeria was followed by a Barcelona draw and a surprise Atletico Madrid defeat.
A summary of all the Champions League matches played across Europe on Wednesday
Key head-to-head battles in Saturday's "Clasico" between Real Madrid and Barcelona at the Bernabeu stadium (1600 GMT)
European champions Bayern Munich led the charge into the last 16 of the Champions League when they beat Viktoria Plzen 1-0 to chalk up a record-equalling ninth straight victory in the competition on Tuesday.
Cristiano Ronaldo grabbed a hat-trick and Gareth Bale became the fifth British player to score for Real Madrid at the Bernabeu in La Liga when he struck twice in an action-packed 7-3 win over Sevilla on Wednesday.
A senseless pitch invasion by Serbian fans in last month's Euro 2016 home qualifier against Albania has cost the Balkan nation dearly and the team fear the ramifications ahead of Friday's match against Denmark, Nemanja Matic said.
Atletico Madrid have a chance to pile more King's Cup misery on neighbours Real after eliminating Athletic Bilbao on Wednesday to set up a last-four clash against the bitter city rivals they beat in last year's final.
Zlatan Ibrahimovic and Cristiano Ronaldo come face-to-face next month when Sweden meet Portugal in a World Cup playoff and they sharpened their claws with six goals between them on a thrilling night of Champions League action on Wednesday.
Atletico Madrid got their La Liga campaign up and running in less than convincing fashion when Antoine Griezmann's deflected free kick secured an edgy 1-0 win at home to promoted Las Palmas on Saturday.
US Open champions Marin Cilic and Serena Williams kicked off their China Open campaigns with straight sets victories against battling underdogs on Monday, but Rafael Nadal suffered defeat in a rare doubles outing on his return from injury.
(Reuters) - Real Madrid, Manchester United and Paris St Germain reached the last 16 of the Champions League on Wednesday on a night when the goals flowed all over Europe with United the highest scorers in a 5-0 win at Bayer Leverkusen.
News of all that's transpired on and off the football field
Photographic summary of the football matches played across Spain, Italy and France
The three-horse race for the La Liga title tightened on Sunday when leaders Real Madrid drew 2-2 at city rivals Atletico and Barcelona won 4-1 at home to Almeria.
Lionel Messi's penalty earned Argentina a 2-1 win over Croatia after a fortunate equaliser that stood despite an unintentional handball by Sergio Aguero in a friendly at West Ham United's Upton Park ground on Wednesday.
Real Madrid's early-season woes deepened when they lost 2-1 at home to La Liga champions Atletico Madrid, while substitute Neymar struck twice in Barcelona's 2-0 win against visiting Athletic Bilbao on Saturday.
A summary of the results of the major European football league matches on the weekend.
News of all that's transpired on and off the football field
Images from the 2018 World Cup qualifiers played in Europe on Monday
News of all that's transpired on and off the football field
As Manchester United prepare to embark on a new era following Louis van Gaal;s departure, Bikash Mohapatra/Rediff.com offers a diagnosis of what went wrong with the most successful Premier League club after Sir Alex Ferguson called it a day.