Villa's chief executive Christian Purslow said 10 first-team players are among 14 positive cases of coronavirus at the club.
Promoted Alaves dealt champions Barcelona a shock 2-1 defeat at the Nou Camp on Saturday while Cristiano Ronaldo returned from injury to help Real Madrid thrash Osasuna 5-2 and go two points clear at the top of La Liga. With Lionel Messi, Luis Suarez and Andres Iniesta on the bench, Barcelona went behind to the visitors in the 39th minute before Frenchman Jeremy Mathieu equalised in the 46th. Ibai Gomez then scored the winner in the 64th.
The victory takes Barcelona up to fourth with 10 points after six games, one point behind surprise leaders Granada, Athletic Bilbao, who visit Leganes on Wednesday, and Real Madrid ahead of their game at home to Osasuna the same night.
David Villa scored twice from the penalty spot to help Valencia to a 4-1 victory at home to Getafe in the Primera Liga on Sunday, putting them back in the hunt for a place in next season's Champions League.
Manchester United had English Premier League leaders Liverpool looking anxiously over their shoulders after a 3-0 drubbing of Chelsea on Sunday put the champions just five points off the pace with two games in hand. Barcelona left it late to win at Osasuna and go 12 points clear in Spain while David Beckham played almost all the match on his debut for AC Milan, a 2-2 draw at AS Roma.
Messi stretched Barca's lead by finishing off a brilliant move with Luis Suarez in the 50th minute and the Uruguayan joined his close friend and strike partner on 15 league goals by robbing an Eibar defender and finishing inside the near post in the 68th.
Levante striker Roger Marti brushed off squandering a penalty to score the winning goal as his side pulled off a shock 2-1 La Liga victory at Real Madrid
Sevilla midfielder Antonio Puerta died three days after collapsing during a Spanish Primera Liga match.
Barcelona forward Lionel Messi returned to training with his team mates on Monday as he continues his recovery from a thigh strain sustained in a La Liga match at Almeria at the end of last month.
Real Madrid crushed Athletic Bilbao 3-0 at the Bernabeu on Sunday to edge closer to the Spanish title but Villarreal's 1-0 victory at Real Betis put their celebrations on hold for at least another week. Real's victory means that with four games left to play they remain 10 points clear of Villarreal at the top of the table on 75 points and will claim their 31st league title if they win next week's match at Osasuna.
Leaders Barcelona needed two goals in the last ten minutes to beat bottom club Osasuna 3-2 away, and moved 12 points clear at the top of the Primera Liga on Sunday.
Barcelona, who are struggling for goals, host Olympique Lyon in Wednesday's Champions League opener in Group E.
Two clinical finishes from Bulgaria striker Dimitar Berbatov took twice winners Tottenham Hotspur through to the UEFA Cup quarter-finals on Wednesday.
Javier Saviola and Wesley Sneijder set up champions Real Madrid for a laboured 3-1 victory over 10-man Almeria in the Primera Liga on Saturday.
The defending champions knocked out Osasuna while Espanyol triumphed over Werder Bremen.
Barcelona are hoping the return of Ronaldinho for Sunday's league match at home to Osasuna will reinvigorate their fading title hopes and add some much needed spark to their football.
Champions Barcelona produced another sparkling display to crush Racing Santander 4-1 and reclaim top spot in the Primera Liga.
Leverkusen finally subdued Besiktas with two goals in the last 13 minutes to secure the 2-1 win they needed to overhaul their Turkish opponents for third place in Group B.
Barcelona's march towards the Primera Liga title slowed on Saturday after a goalless draw with bottom-placed side Malaga.
AC Milan and Liverpool won their Champions League qualifying rounds.
Luka Modric's top priority is to win La Liga this season, the midfield maestro said on Wednesday after signing a new contract that will keep him at Real Madrid until 2020. The Croatia international has claimed two Champions League titles, a King's Cup, UEFA Super Cup and the Club World Cup since joining from Tottenham Hotspur in 2013 for a fee of 35 million euros ($38.36 million).
A 3-0 victory took Barcelona to the top of the Primera Liga.
Real Madrid lost 4-3 at Sevilla but still finished second in the Spanish Primera Liga.
Hellas Verona produced a huge upset by coming from behind to beat Serie A leaders Juventus 2-1 on Saturday, inflicting a third defeat of the season on the Italian champions. Cristiano Ronaldo set a new Juventus record by scoring in a 10th consecutive league game to put the visitors in front at the Stadio Marc'Antonio Bentegodi after 65 minutes.
A three-pronged investigation will take place into alleged state aid for several La Liga clubs, including Real Madrid and Barcelona, the European Commission said on Wednesday.
Leaders Barcelona set a club record of 12 consecutive wins in all competitions with a 3-1 victory at Cadiz in the Primera Liga.
A round-up of weekend action in the major European leagues.
Real Madrid brushed off the absence of Cristiano Ronaldo and Gareth Bale to beat Espanyol 2-0 away and maintain their 100 per cent start to the league season while matching the La Liga record of 16 consecutive victories.
Sevilla knocked Barcelona off the top of the Primera Liga after goals from Frederic Kanoute and Adriano Correia earned a 2-0 home win over Osasuna on Sunday.
Barcelona eased into the King's Cup last 16 when goals from Pedro, Cristian Tello and Neymar secured a 3-0 second-leg victory at home to third-tier Cartagena on Tuesday for a 7-1 aggregate success.
Spanish soccer's 'El Clasico' encounters between Barcelona and Real Madrid will happen in December and April, two of the most anticipated games of the 2016-17 Primera Division season whose fixtures were announced on Friday. Defending champions Barca host Real on Dec. 4 at the Camp Nou. The reverse fixture will take place on April 23, at the Bernabeu stadium, the Spanish Football Federation (RFEF) confirmed after the draw. As the La Liga season kicks off, Barca will begin their title defence at home to Real Betis on Aug. 21.
Images from the football matches played across Europe on Sunday
The Real Madrid striker has been left out of the squad to play Athletic Bilbao this weekend because of a minor leg strain.