The group stage is the initial stage of the AFC Champions League and is divided into eight groups, each consisting of four teams. Depending on the results of the draw, teams are assigned to various groups. The group stage is played in a home-and-away round-robin format, which means that each team plays home and away matches against three other teams for a total of six rounds. At the end of each match, the winning team gets three points, the draw gets one point each, and the losing team gets no points. 
In the group stage, the competition is fierce, as the top two teams from each group will have a chance to advance to the knockout stage. This makes every game crucial and teams need to give it their all to get the best results. During the game, we can not only appreciate the great performance of the players, but also feel the enthusiasm and passion of the fans. 
The group stage is also full of possibilities. Even if a team loses in the first round, they still have a chance to catch up in the later games. Similarly, if a team wins in the first round, they will need to keep working hard to ensure that they can stay ahead of the game in the following games. 
The knockout stage is a continuation of the group stage. At this stage, each game becomes even more important, as losing one game can lead to a team being eliminated from the competition. At the same time, the knockout stage is also the best opportunity to show the strength of the team, because only the team that performs well in the knockout stage will eventually win the championship.