Poland defeated Saudi Arabia 2-0, putting the Polish team in Group C's top spot.

Saudi Arabia has the second highest number of points in the group thanks to its surprise 2-1 win over Argentina. Mexico and Argentina will face off later today, where Mexico could knock Argentina out of the tournament with a win.

Poland and Saudi Arabia have kicked off at Education City Stadium in Doha, Qatar.

Saudi Arabia shocked the football world this week with a 2-1 over Argentina, one of the favorites to win the World Cup. Poland played Mexico and earned a scoreless draw against the squad to take one point away from the match.

The second Group C match of the day will take place later on where Mexico can eliminate Argentina from the competition with a win.

Australia and Tunisia played a tight game throughout with each squad having their chances to score but it was Australia who ultimately prevailed 1-0 over the North African side.

Tunisia is now on the backfoot when it comes to qualifying for the knockout rounds but they have not formally been eliminated in the loss to Australia. Australia have garnered three points in their two matches thus far. Tunisia has earned one point in their matches. Denmark takes on France later today in the other Group D match.

Mitchell Duke scored the only goal of the first half -- a spectacular header in the 23rd minute -- as Australia leads Tunisia 1-0 at the break.

The match, taking place at Al Janoub Stadium in Al Wakrah, Qatar, is the second match for either squad. France is set to play Denmark later today in the second Group D game of the day.

Belgium entered the World Cup with the No. 2 ranking in the world with its so-called "Golden Generation" looking at one last chance to win the tournament. Now, the team is fighting just to advance to the knockout stage.

All eyes will be on Romalu Lukaku, the star forward for Belgium who has been recovering from a hamstring injury, to see if he can play and play well. He came on as a substitute in the squad's second game for his first action of the tournament. He'll start Thursday's game on the bench too, but figures to be an important substitute.

Belgium, currently third in Group F, faces Croatia, which stands atop the group. A win for Croatia puts them in the second round and officially eliminates Belgium. A win for Belgium would also put them through. A draw and it gets more complicated, with Morocco also in contention.

Morocco is facing off with Canada, which is unfortunately already eliminated from advancing to the knockout stage in its first World Cup appearance since 1986. At 0-2, the country would still like to get its first World Cup victory ever. Morocco would clinch a spot in the second round with a win. If both matches end in a draw, then Croatia and Morocco would go through to the knockout stage.

The second slate of games Thursday features longtime soccer power Germany fighting to stay alive. The country sits last in Group E with just 1 point. They'll need to beat heavy underdog Costa Rica just to have a chance to advance. If Germany wins and Spain beats Japan, Germany would get through.

Spain or Japan would advance with a win as they play each other. Spain would also advance with a draw, but Japan would only advance with a draw if Germany loses or ties or Germany wins and Japan has the better goal differential.

Here's the schedule for Thursday:

• Canada vs. Morocco, FS1, 10 a.m.
• Croatia vs. Belgium, Fox, 10 a.m.
• Costa Rica vs. Germany, FS1, 2 p.m.
• Japan vs. Spain, Fox, 2 p.m.