It was Messi's 30th goal in 39 competitive games against Atletico
Barcelona coach Ronald Koeman has defended centre-back Gerard Pique's right to make comments about referees favouring Real Madrid.
Yet even without a transfer fee, Messi's colossal salary, reported to be the highest in world football, means very few clubs would be able to afford him.
Twenty-three-times Cup winners Athletic Bilbao were dumped out in sensational circumstances by tiny island side SD Formentera, who sneaked a 1-0 win at San Mames with a header by Alvaro Muniz deep in stoppage-time to reach the last 16 for the first time with a 2-1 aggregate victory.
Last year's finalists Juventus will face-off against Bundesliga champs Bayern.
Messi's damning assessment of the team came home to roost when the season re-started after the coronavirus stoppage and Barca surrendered the league title to Real Madrid, prompting the captain to launch a new tirade against the team.
A delightful flick and volley from Neymar allowed him to complete a double as Barcelona beat Villarreal 3-0 to go three points clear at the top of La Liga ahead of Real Madrid's clash with Sevilla later on Sunday.
Barcelona forward Neymar is reportedly looking forward to welcome Luis Suarez into his and Argentina captain Lionel Messi's star-studded strike partnership when the Uruguayan returns for his four-month ban this weekend.
Barcelona forwards Ousmane Dembele and Lionel Messi fired the Catalans to a confidence-boosting 2-0 win at in-form Sevilla on Saturday to keep the pressure on La Liga leaders Atletico Madrid.
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.
Here are five talking points from the weekend's La Liga action:
Although United made a bright start to their quarter-final second leg at the Nou Camp with Marcus Rashford hitting the crossbar early on, they were soon outclassed by Barca, who eased to a 3-0 win on Tuesday for a dominant 4-0 aggregate victory.
Sergio Busquets called on Barcelona to sign more players after the club's 3-1 Spanish Super Cup defeat by Real Madrid on Sunday.
Frenchman Lenglet's first league start since his 36 million-euro move from Sevilla turned sour when he was shown a straight red card in the 35th minute at the Nou Camp following a coming together with Pons, after referee Jesus Gil Manzano consulted the video assistant referee (VAR).
Arsenal have only themselves to blame after a run of two wins in nine games in all competitions has left them with only an outside chance of winning any silverware, midfielder Mesut Ozil was quoted as saying on Thursday.
Barcelona will not be complacent in the second leg of their Champions League round of 16 tie against Arsenal despite leading 2-0 from the first game in London.
Reaction to the death of football great Johan Cruyff, who died in Barcelona on Thursday following a five-month battle with lung cancer.
Atletico Madrid have signed striker Luis Suarez from Barcelona, the Spanish clubs said on Wednesday, bringing to an end his six-year stint at the Camp Nou.
Former player and reserve team boss Santiago Solari has been put in caretaker charge after negotiations between the club and former Chelsea, Italy and Juventus boss Antonio Conte broke down on Monday, the club added.
Catalans will have to cope without their inspirational captain Andres Iniesta, the man who has pedigree when it comes to beating the Blues.
Barcelona captain Lionel Messi scored two goals and set up two more as the Catalans thrashed Real Valladolid 5-1 to move top of La Liga on Tuesday.
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.
The 58-year-old pointed to the 26-point gap in the Premier League table between runners-up Liverpool and his fourth-placed former team as evidence of a massive gulf between the sides.
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'We have to improve and become stronger in defence, which is the most important thing.'
'We saw Messi play like a kid in the school playground today'
News of all that's transpired on and off the football field
From bloody noses to sparks on the race track, Rediff.com has the best pictures from the last week snapped right here...
La Liga leaders Barcelona earned a narrow 1-0 win over Real Valladolid to move seven points clear at the top, while Real Madrid lost 2-1 at home against Girona to fall to third behind Atletico Madrid.
Lionel Messi led Barcelona to a 3-1 win at home to Napoli for a 4-2 aggregate victory which took the club into the Champions League quarter-finals, where they face Bayern Munich.
Cristiano Ronaldo scored twice as Juventus strolled to a 3-0 home win over bottom side Crotone in the Italian Serie A on Monday, with the victory taking the champions up to third in the standings.
Paris St Germain coach Unai Emery cursed his side for switching off in the final minutes of their 6-1 defeat at Barcelona which sent the French champions out of the Champions League before the quarter-finals for the first time in five years.
France international Samuel Umtiti has completed a "dream move" to Barcelona knowing he is not guaranteed a first-team place but says he is willing to learn to prove his potential.
'The system is the same and we all have to contribute a bit more but it is impossible not to feel Messi's absence' 'But Neymar is also a leader for his playing style and what he brings to the team'
Barca, who had a rather disappointing season, managed to restore some pride with victory over last season's second division champions in what was the final match to be played at Atletico Madrid's Vicente Calderon Stadium.
The 28-year-old Argentine has scored seven goals from direct free-kicks in this year's La Liga, the latest in Sunday's 5-0 triumph over Espanyol.
Barca must beat Villareal on the weekend if they are to stand a chance of overhauling Real in the run in.
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Images from Tuesday's action in the UEFA Champions League.