Goals from Dani Olmo, Raphinha, and an acrobatic Lamine Yamal strike powered the Catalans to 52 points, one ahead of Real Madrid.
Barcelona came within a whisker of an improbable comeback after last month's thrashing, with 18-year-old midfielder Marc Bernal, starting in place of the injured Frenkie De Jong, scoring in each half and Raphinha converting a penalty after Pedri was fouled.
Atletico Madrid secured a 2-0 victory over Barcelona in the first leg of their Champions League quarter-final, boosted by a red card for Barcelona's Pau Cubarsi and goals from Julian Alvarez and Alexander Sorloth.
Lamine Yamal's hat-trick led Barcelona to a 4-1 victory over Villarreal in LaLiga, extending their lead over Real Madrid.
Barcelona outclassed Mallorca 3-0 at home on Saturday to increase their lead at the top of the LaLiga standings.
Three stars-Barcelona's Lamine Yamal, PSG's Ousmane Dembele, and Barcelona's Raphinha-have dominated the season with goals, assists, and match-winning performances.
Barcelona secured a composed 2-0 LaLiga victory at Villarreal on Sunday thanks to goals from Raphinha and Lamine Yamal in a match that tilted firmly in the visitors' favour when the hosts were reduced to 10 men just before the break.
Mario Lemina's early diving header handed Galatasaray a 1-0 victory over Liverpool in their Champions League last-16 first leg on Tuesday.
Barcelona recovered from an early setback to secure a 3-1 victory over Deportivo Alaves in LaLiga on Saturday.
Adrien Rabiot scored two goals as AC Milan came from behind to earn a 3-1 victory at Como on Thursday.
IMAGES from the UEFA Champions League matches played on Wednesday.
Barcelona striker Robert Lewandowski has suffered a torn thigh muscle, the club said on Tuesday, with the Poland captain facing a spell on the sidelines that could rule him out of next week's LaLiga clash against Real Madrid.
Mbappe chasing Ronaldo record as Real Madrid host Celta
"I don't see it as pressure, a team like Brazil is always a contender for the World Cup or any other title that they play for. The demand of the fans is normal because we are a high-quality team, with big names,"
England forward Raheem Sterling joined Chelsea on a five-year contract from Manchester City, the two English Premier League clubs announced on Wednesday.
Brazil's Barcelona forward Raphinha regretted that the players were not consulted about extending their season to play at the Club World Cup, adding that nobody should be obliged to give up their vacation time.
IMAGES from UEFA Champions League matches played on Wednesday
The result keeps Barcelona second in the table on 16 points from six games, two behind leaders Real Madrid. Oviedo remain 18th with just three points.
On debut, substitute Marcus Rashford became the first Englishman to play a first-team game for Barcelona since former England striker Gary Lineker in 1989.
Raphinha scored twice as Barcelona overcame a two-goal deficit to secure a crucial 4-3 home victory against rivals Real Madrid in a pulsating Clasico on Sunday, edging them closer to the LaLiga title.
Nine players from treble-winning Paris St Germain have been nominated for the men's Ballon d'Or this year along with the club's coach Luis Enrique as France Football announced the list of nominees on Thursday.
Aitana Bonmat won the women's Ballon d'Or for the third year running while the 18-year-old Yamal, who was Dembele's teammate at Barcelona when he first broke through in 2023, was again awarded the men's Kopa Trophy.
Marriner also ruled out a goal for the Saints from a quickly-taken free kick just before halftime, saying he had not blown the whistle before James Ward-Prowse played in Che Adams, who put the ball in the net.
A summary of Thursday's World Cup qualifiers.
A summary of Wednesday's Champions League first leg quarter-finals between Barcelona and Dortmund and Real Madrid, and Paris St Germain and Aston Villa.
Images from the Champions League semi-final first leg between Barcelona and Inter Milan at Estadi Olimpic Lluis Companys, Barcelona, Spain, on Wednesday.
Barcelona came from an early goal down to beat Real Madrid 5-2 in the Spanish Super Cup final on Sunday
Rashford, one of Europe's top talents before falling out of favour at United and spending the latter part of last season on loan at Aston Villa, joins a stellar attacking cast featuring Robert Lewandowski, Raphinha, Dani Olmo and Ferran Torres.
Images from the the Champions League semi-final second leg between Inter Milan and Barcelona at San Siro, Milan, Italy, on Tuesday.
LaLiga leaders Barcelona lost 1-0 to Leganes on Sunday
A round-up of Saturday's action in LaLiga, Serie A and Ligue 1.
All the action from La Liga and Serie A matches played on Sunday.
The victory lifted Brazil to second in South American qualifying with 21 points, four behind leaders Argentina and one ahead of Uruguay in third, both of whom have a game in hand and will clash on Friday.
A summary of Saturday's action in LaLiga, Serie A, Bundesliga and Ligue 1.
Barcelona will go to the international break on top of the standings on a perfect 12 points from four games, five ahead second-placed Villarreal and seven clear of bitter rivals Real Madrid
Barcelona captain Raphinha scored twice as they returned to winning ways in LaLiga for the first time in a month with a 5-1 victory at Mallorca on Tuesday.
A round-up of Wednesday's UEFA Champions League last-16 first leg matches.
He is the youngest player to debut and score for Spain and in LaLiga, the Champions League and the Euros. He also holds the records for youngest player in a Clasico and youngest scorer in both the Super Cup and Copa del Rey.
Lionel Messi scored a hat-trick and had a hand in two more goals as Argentina crushed Bolivia 6-0 in South American qualifiers for the 2026 World Cup.
Barcelona manager Hansi Flick was upset over several refereeing decisions in his side's 4-3 loss at Inter Milan that stopped the Catalans reaching their first Champions League final in a decade after an extra-time goal by home substitute Davide Frattesi.
