The defenders signed contracts on Tuesday from Bayern Munich making United their third team together, and they could both feature in the squad's season opener on Friday against Fulham at Old Trafford.
Earlier, Messi's World Cup-winning team mate Emiliano Martinez won the Lev Yashin award for the world's best goalkeeper.
Brazil shocked and other big upsets at World Cup qualifiers played on Tuesday
Argentina's Lionel Messi won the Ballon d'Or award for the best player in the world for a record-stretching seventh time on Monday, beating Robert Lewandowski and Jorginho to lift soccer's most prestigious trophy yet again.
A fan invasion in the opening match of the Olympic football tournament between Argentina and Morocco on Wednesday caused chaos, with Argentina eventually beaten 2-1 following a VAR review after play was suspended with the score tied at 2-2.
Argentina began their 2018 World Cup campaign with a 1-1 draw against Iceland -- a game in which Messi missed a penalty -- and finished second in their group before being knocked out by eventual winners France in the last 16.
Scaloni has helped get one over the Dutch Master at least once before when he was at Deportivo, who pipped Van Gaal's Barcelona to the 1999-2000 La Liga title.
Lionel Messi passed Javier Mascherano as Argentina's most capped international on Monday and scored twice as they beat Bolivia 4-1 to set up a Copa America quarter-final against Ecuador.
The Barcelona striker has won the FIFA World Player of the Year a record six times and is widely considered one of the greatest players ever to play the game, alongside Pele and countryman Diego Maradona. But his inability to win an international title with Argentina always left an asterisk beside his name on the all-time greats list.
The Argentine forward's glittering resume has one major omission -- a World Cup winner's medal.
The Aston Villa 'keeper saved three penalties in the 2021 Copa America semi-final and Argentina went on to lift the trophy. Now he's stopped two more in a World Cup quarter-final and this could just be a good omen for Messi!
Now, with Lionel Messi and Cristiano Ronaldo venturing into smaller leagues as they near the end of their brilliant careers, 2024 may finally be the year for the next in line in football royalty.
Lionel Messi, so often the key man for Argentina, paid tribute to Martinez.
Argentina won the 2021 Copa America but despite always being one of the World Cup favourites they have not lifted football's most precious trophy in the last 36 years.
Arsenal took the race to the final day last season and are strongly tipped to end Manchester City's dominance this time.
Friday's game marked Messi's return to the national side after being rested for Argentina's previous two World Cup qualifiers
Paris is, and will continue to be, dogged by the usual gripes about staging the greatest show on earth.
New Jersey awarded 2026 World Cup final, Mexico gets opener
'Trust me, the comeback of Leo Messi only depends on him.'
Messi has spoken at length about the dream of winning a title with Argentina and his compatriots know how much an international trophy means to him.
The first edition of FIFA's new 32-team Club World Cup will be held in the United States in 2025, world soccer's governing body said on Friday.
"To say I'll be happy for Argentina (if they win), that will not be true, it would be a lie, I will not be a hypocrite," Ronaldo said in an interview with the Spanish daily Marca.
Lionel Messi stepped out of Diego Maradona's shadow by leading Argentina to World Cup victory last year and a statue of the diminutive forward will stand alongside those of his predecessor and Brazil great Pele at the South American federation's museum.
The Uruguay striker seemed to momentarily forget that Chile goalkeeper Gabriel Arias's job is to stop shots with his hands and appealed for a penalty, gesticulating to the referee by pointing to his own hand.
His Brazilian fans loved him for his idiosyncratic personality and unapologetic nationalism. He liked to say he was born with victory at his side and was rarely shy to challenge those who said his teams were too defensive.
Summary of sports events and persons who made news on Sunday
Messi's Instagram post with the Copa America trophy has become the platform's most-liked sports photograph.
A late header from Edinson Cavani gave Uruguay a 1-0 win over Copa America holders Chile which saw them snatch top spot in Group C at their opponents' expense and set up a quarter-final meeting with Peru.
Lionel Messi's passionate performances at the Qatar World Cup are earning him oodles of love from Argentines, but their old favouritism for Diego Maradona may resurface unless he brings home the trophy on his final attempt.
A decision to include Japan and Qatar as the invited sides to this year's Copa has also done little to generate faith in the new leadership, with the tournament usually featuring the 10 South American nations plus two invited teams, although they are generally from elsewhere in the Americas.
Neymar says that he is neither a superhero nor a perfect role model.
Neymar prompted more speculation with a brief Instagram video, showing a black-and-white image of himself in a shirt with the badge of Barcelona and a quote from the Bible, which was widely reproduced on news websites.
Messi and his Argentina teammates are currently participating the Copa America in Brazil where he is hoping to lead his team to the title, having finished runners-up in the 2016 edition.
Argentina lose to Brazil in Copa America semis
Suarez spurned the first penalty of the shootout, his effort bouncing off the chest of Peru goalkeeper Pedro Gallese, to complete a frustrating evening for Uruguay's all-time top scorer, who also had a goal ruled out for offside.
A sense of euphoria was in the air in the country, particularly in the Buenos Aires neighborhood of Palermo, where thousands of jubilant fans crowded to watch the match on a giant screen in the park.
Between trying to compose himself, wiping away tears and facing a long standing ovation, it took Lionel Messi more than a minute to start his farewell news conference on Sunday at FC Barcelona, where the Argentine has spent all of his playing career.
"It's a beautiful thing that many people outside Argentina want us to be champions and that it's largely because of me," Messi said.
Brazil coach Dunga said Tuesday he would pick star striker Neymar for the Olympics rather than the Copa America Centenario if he is only cleared to play in one tournament this summer. Neymar's summer schedule has been the subject of much debate, with the Barcelona superstar initially vowing to play both tournaments -- the 16-team Copa America in the United States in June followed by the Olympics in August. But the chances of Barcelona signing off on such a grueling schedule for their prized striker seem remote. With the Copa America part of the FIFA calendar, Barcelona are obliged to release Neymar for the tournament. However, the Spanish giants have no obligation to release Neymar for the Olympics in Rio de Janeiro, where five-time world champions Brazil will once again try to win the only major title that has eluded them. It is possible Barcelona could give Neymar the green light to play in the the Olympics on the condition he does not play the Copa America.
Brazil's appeal against Neymar missing their first two South American 2018 World Cup qualifiers this month has been turned down, the Court of Arbitration for Sport (CAS) said on Friday.
