The disappointment for China's national football team was evident in their recent loss to South Korea in the qualifiers for the 2022 FIFA World Cup. Despite their impressive defensive performance throughout the tournament, they fell short in the crucial match with a scoreline of 0-2.

This defeat marked a significant setback for China's team as they have been performing well on the international stage in recent years. However, this result was not enough to secure their place in the final group stages of the tournament.

The loss to South Korea has highlighted China's vulnerability in defending against aggressive opponents from the start of the game. The team had a chance to come back and win the match, but unfortunately, they failed to capitalize on their opportunities.

The players who played in the game were undoubtedly disappointed by the outcome, especially those who were part of the team that started off strong and had the opportunity to win the match. It is clear that there is still much work to be done if China wants to reach the finals of the World Cup.

In conclusion, while China's national football team showed remarkable defense throughout the qualifiers, they ultimately lost to South Korea in a disappointing 0-2 match. This result shows that there is still much room for improvement in terms of player quality, tactics, and overall preparation for the World Cup.