Some more thoughts on the France-Argentina match.
Messi, despite getting two assists, was largely anonymous for much of the match. I think this was partly due to a tactical error by Argentina, and a tactical masterstroke by France. Argentina's error was to play Messi centrally as a false nine. The false nine strategy works by having the center forward (who usually has the number 9) drop deeper, which either gives the false nine player open opportunities to receive the ball, or forces one or more of the central defenders to track him, thus leading to space for teammates to exploit. The problem is, though, that for the false nine strategy to work, the wingers or midfielders need to move into the space vacated by the opponent's central defender(s), and Argentina's wingers and midfielders weren't doing that. So Messi would receive the ball in a deep position, then have no one making a dangerous run to pass to before he's harried off the ball. The only exception was for Argentina's third goal, after Aguero had finally come on, and Argentina finally had someone making the kind of runs that Messi can supply. France's strategic win was when they recognized that Argentina would be using Messi as a false nine (which isn't that hard to deduce, really, given that Messi's pretty much the guy who popularized the false nine position in the modern game) so they assigned N'Golo Kante to mark him out of the game. The genius of this move is twofold. Firstly, Kante is a midfielder, which means France's central defenders won't be pulled out of position by Messi dropping deep. Secondly, Kante is famed for his defensive awareness, work rate, stamina, and unselfish playstyle. He's basically perfectly suited to shadow Messi for 90 minutes and harass him whenever he has the ball, and even some of the time when he doesn't. Plus, every time Messi got a sniff of the ball, at least one other France player would come help Kante defend. Even Messi can't do much when he's getting triple-teamed by Frenchmen all game.
Argentina also played into France's hands in the later stages of the game by pushing forward and chasing goals. This opened them up to French counter-attacks, as we saw in France's second and fourth goals.
I mean, look at the fourth goal, it started with the ball at the goalkeeper's feet, and then five passes later Mbappe is rifling a shot into the net. That's Wengerball-levels of movement and efficiency there.
Speaking of Mbappe, holy shit this guy is good. He reminds me of a young Cristiano Ronaldo with his pace and fearlessness. He was scaring the crap out of Argentina every time he ran at them. The last time I saw Argentines so terrified by a young forward at a World Cup match was Michael Owen in 98.
As a final note, I liked how the camera would pan to Messi every chance they got, whether it was a France goal, or Argentina's attack breaking down, or whatever. Messi had a constant "WTF is this shit" expression throughout the whole match.