With just a day to go for the kick-off to the biggest prize in youth football, Goal brings to you a comprehensive guide as to how teams will progress from the group-stages to the knockout rounds.

For starters, the 24 participating nations from six different confederations around the world have been divided into six groups containing four teams each. The teams were allocated their respective groups through a draw based on their seedings.

The system of play will be the league system, each team playing one match against each of the other teams in the same group, with three points for a win, one point for a draw and none for a defeat.

At the end of the group matches, the top two teams from each pool along with the four best third-ranked teams will advance to the Round of 16.

The top two teams from each pool at the end of the group-stages will be decided in the following manner in order of sequence:-

The highest number of points obtained in all group matches; Goal difference in all group matches; The highest number of goals scored in all the group matches.

If two or more teams are tied on the basis of the above three criteria, their rankings will be decided as follows in order of sequence:-

Highest number of points obtained in all group matches between the teams concerned; Goal difference in the group matches played between the teams concerned; Highest number of goals scored in the group matches played between the teams concerned; Highest number of fair-play points accumulated by the concerned teams in all group matches decided in the following manner:-

It is important to note that only one of the above deductions (the highest) is applicable to a particular player in a single match. Hence if a player collects two yellow cards in a match, the team will be deducted three points.

If two or more teams are still tied based on the all of the above rules, then the winner will be decided based on a draw of lots by the FIFA organizing committee.

When it comes to deciding the four best third-ranked teams from the group stages, the following criteria shall be applied in order of sequence:-

Highest number of points obtained in all group matches; Goal difference in all group matches; Highest number of goals scored in all group matches; Highest number of fair-play points accumulated by the concerned teams in all group matches; Draw of lots by the FIFA organizing committee.

Once the 16 best teams from the group-stages have been decided, they will take their place in the pre-quarterfinals in the manner shown in the table below.

To determine how the best third-ranked teams are placed in the Round of 16, we shall refer to the following table. The combination refers to the pools from which the third-placed teams have qualified.

The winners of the Round of 16 will progress to the quarter-finals in the manner shown in the table below.

If the teams are level at the end of 90 minutes in the final and the third-place play-off then the winner shall be determined by spot-kicks and there shall be no extra time.