Argentina were never in any danger during their 3-0 friendly win against Jamaica on Tuesday, played at a neutral site in the United States' Red Bull Arena.
Alvarez opened the scoring in the 13th minute thanks to some terrific work from Lautaro Martinez, who was able to snake his way into the box, beating multiple defenders to get to the touchline and drag one back along the edge of the six-yard box for a simple tap-in.
Argentina continued to create half-chances throughout the remainder of the first half, and it was more of the same to begin the second 45, with Martinez going close after a slick one-touch pass from Alexis Mac Allister gave him some space inside the box, but he pushed his shot wide of the far-post.
Lionel Messi was subbed on in the 56th minute, and just 10 minutes later he had his first chance after a one-two on the edge of the area allowed him to break into the left-hand side of the box, but his shot from a sharp angle was easily thwarted at the near post.
But fans in attendance would get what they came for in the 87th minute, when Messi picked up a deflected pass just outside the penalty area and fired his left-foot shot hard and low across his body into the bottom-right corner.
Just two minutes later Argentina were awarded a free kick in the same spot, and Messi again converted, this time around the wall into the bottom-left corner.
What does it mean? Argentina now two games away from history
With this result, Argentina are now unbeaten in their past 35 games dating back to their loss in the 2019 Copa America semi-final against Brazil.
Italy holds the record at 37 games without a loss – which they set just last year. Argentina's next two games will be in the World Cup against Saudi Arabia and Mexico, and if they make it through unscathed, they will play Poland for the new record.
Messi the super sub
Despite only playing 35 minutes, Messi led all players with five shots, four shots on target and three successful dribbles. Only Alvarez (three) created more chances than Messi's two, and he scored two goals for his second consecutive international fixture after also netting a double against Honduras this past weekend.
Reid struggles with Argentinian physicality
Bobby Reid had a difficult outing down the left-hand side, being credited with only two duels won from 11 tries – the lowest percentage on the pitch. He also had a passing accuracy of 77 per cent, which was one of the lowest marks from either side, while attempting no shots and creating no chances.
What's next?
Argentina will take their unbeaten streak into the World Cup, where they will play Saudi Arabia first up. Jamaica do not have any fixtures scheduled until March's CONCACAF Nations League.
Orlando City 0-0 Inter Miami: Messi-less Herons held by Florida rivals
MLS leaders Inter Miami were held to a 0-0 draw by state rivals Orlando City on Wednesday, as they failed to spark in Lionel Messi's absence.
Messi was missing from the squad due to a knee injury, and Miami were unable to extend their winning run to six MLS games without their superstar.
Indeed, other than a few Luis Suarez attempts, Orlando had the better of the chances at Inter&Co Stadium.
Yutaro Tsukada might have won it for Orlando on his debut, but the substitute sliced off target late on.
Miami are a point clear of FC Cincinnati at the top of the Eastern Conference, and Gerardo Martino will hope to have Messi back for the Herons' clash with D.C. United.
Data Debrief: Miami's unbeaten run rolls on
They may not have taken all three points, but Miami are now unbeaten in eight MLS matches. It is their longest unbeaten streak in the competition.
Orlando, meanwhile, have failed to score in five of their 12 games this term; no team has failed to do so more often in MLS.
Getafe 0-3 Atletico Madrid: Griezmann treble seals Champions League qualification
Atletico Madrid's Antoine Griezmann scored a hat-trick in a 3-0 LaLiga win at Getafe on Wednesday as Diego Simeone's side sealed Champions League qualification.
The France star opened the scoring in the 27th minute from Rodrigo De Paul's throughball and had his second shortly before half-time, flicking Samuel Lino's pinpoint pass past Getafe goalkeeper David Soria.
Griezmann completed his hat-trick in the 51st minute with a fine finish under Soria's legs, with Lino claiming his second assist by playing Los Colchoneros' all-time leading scorer into the area.
It was Griezmann's second hat-trick of the season, after he also netted three times in a 3-0 win at Celta Vigo last October.
With two games remaining, Simeone's side are now on 73 points in fourth, 11 ahead of fifth-placed Athletic Bilbao, who lost 2-1 against Celta Vigo on Wednesday.
Data Debrief: Griezmann repeats the trick
Griezmann is the only player to score two hat-tricks in LaLiga this season, and the only player to net a treble with all three goals coming on his left foot.
He might need to go even further to put himself in Golden Boot contention, though, with his 16 goals for this term putting him behind Artem Dovbyk (20), Jude Bellingham, Alexander Sorloth (both 19) and Robert Lewandowski (17).
Fernandes looking for strong finish to Man Utd's season
Bruno Fernandes says Manchester United must "finish the season in the best way" following their 3-2 win over Newcastle United.
The United youngsters played starring roles, with Kobbie Mainoo, Amad Diallo and Rasmus Hojlund getting all three goals to close the gap to Newcastle in the table.
Anthony Gordon and Lewis Hall both netted for the Magpies, with the latter setting up a nervy finish with his stoppage-time effort, but their lack of clinical edge meant United earned all three points.
Erik ten Hag’s side avoided a third consecutive defeat, and what would have been a record-breaking 10th home loss of the season, and Fernandes insists they must find a way to finish positively.
Speaking to Sky Sports, the United captain said: "Obviously the job isn’t finished yet. We still have one game in the Premier League, then the biggest game of the season, the FA Cup final.
"It has been a tough season. The table shows that, and we are all aware of that. The fans have been amazing and behind us all season. We all appreciate what they have been doing for us.
"We want to do better and do differently. They [fans] have been amazing for us, and we had to do something. We have been trying, but results don’t show that. We have been working hard and everyone has been giving their best. It is not enough, and we have to do more.
"We still have two games to go, and we have to finish in the best way.
"It doesn’t exist, a captain's performance, it is a team performance. I am no different from anyone just because I have the armband. I always try my best, and we always do the best we can for the club – nobody hides that we play for a big club, and we have to lift our standards every game."
Despite returning to winning ways, United have now conceded 58 Premier League goals this season, their most across a single campaign in the competition.
Ten Hag was keen to turn the focus away from their struggling defence and onto the attacking players instead.
"Fantastic. Great goals. But it was a team effort how we made the goals. But I'm always happy at young players who are progressing very good and scored some brilliant goals," he told BBC Sport.
"Newcastle have a lot of physical power, and you have to match that, but you also have to play football. We had found the really good balance in this.
"It's always nice to win any game. It's important to win the last game at Old Trafford this season. The fans deserve this because they've had difficult times and always stayed with us.
"We are here together. We wanted to pay the fans back."
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