Argentina took a 1-0 victory from Uruguay in a rather underwhelming performance by both sides on Tuesday.

Sergio Aguero scored the winner, his second of the tournament, turning Group B on its head and in the process eliminating Jamaica from contention.

After Paraguay defeated Jamaica 1-0 and Argentina's win, the three remaining teams in the group all have four points, meaning that the final game of group play will determine who finishes at the top and who likely finishes third.

Here are some takeaways from the match.

Messi the Harmless

Remember all that talk about Lionel Messi looking unstoppable for Barcelona? How he had a newfound confidence that elevated him above the rest?

It does not seem to transfer over to Argentina. At least not at the present moment. For one reason or another, Messi simply gets lost in Argentina's shuffle, becoming relatively ineffective on the attack for his nation. No one is going to blame him for the 2-2 draw with Paraguay because he scored a penalty goal, but Messi blew one chance after another in uncharacteristic fashion.

He often gets praised for his lack of wastefulness when compared to Cristiano Ronaldo who gets more shots but scores less often on those shots. Messi had seven shots and only two were on target in the Paraguay game; one of those shots was the penalty.

He was dribbling about with aplomb against Uruguay, as usual, but it was rather disconcerting that he looked uncomfortable finding space with which to create. Not a horrid game for Messi, but this tournament has not been his banner moment. Yet.

Uruguay Is Toothless

Remember how everyone thought that a Uruguay without Luis Suarez was a Uruguay without a chance? Remember how that same Uruguay struggled mightily to get past a mediocre Jamaica side despite being the runaway favorite?

Uruguay's weaknesses came to the fore of the loss to Argentina as the team not only lacked the ability to win back the ball, but did little when it had possession. The team finished the match with just

Passing accuracy was particularly woeful with the team only able to connect on 62 percent of its passes. That is not a misprint.

Edison Cavani continued to prove that despite his production for Paris Saint-Germain, he is not the kind of forward to put any team over the edge. He had three shots and not one was on target.

Uruguay ramped up the attack in the final minutes with a loss in the balance, but it was as they say - too little, too late.

Argentina will need to grind out wins

When your starting lineup includes Messi, Sergio Aguero and Angel Di Maria leading the way on offense, you might imagine that the team will feature some other worldly attacking soccer.

That was the expectation in 2014 and in 2015 and so far the dream has not materialized.

In 2014 Argentina had to learn how to grind out wins on its way to the World Cup Final against Germany despite many believing that it would do so by attacking at will.

In 2015, under Gerardo Martino, many expected that the attacking style would make a grand return. Everyone saw how dangerous that could be because it exposed Argentina's questionable backend.

So in the game against Uruguay Argentina was forced to revert to the grinding style that was so successful in Brazil. It was not pretty, but the result, a 1-0 win, was ultimately all that mattered.

That said, Argentina continued to look susceptible in the waning minutes of the game when Uruguay suddenly looked desperate to draw level. As it did against Paraguay, Argentina looked like it was holding on for dear life. In the Paraguay game, the team capitulated. In this one, it managed to get by.