In the first quarter-finals of the U20 Asian Cup that ended on February 22, Beijing time, the Chinese national youth lost 0-1 to Saudi Arabia and missed the semifinals. After the game, the national youth coach Djurdjevic also caused controversy because of the substitution.

Throughout the game, the national youth dominated most of the time. Even after Liu Chengyu missed the penalty, the national youth still got many good chances, but the situation began to change as the Saudi team continued to make substitutions. The Saudi coach successively replaced 5 people to fill the substitution quota, and many of the main players in the group stage appeared one after another, and Saudi Arabia began to take the initiative by using the advantage of physical fitness.

What is puzzling is that the national youth only made 2 substitutions in the whole game. Liu Chengyu, who missed a penalty in the game and missed a good opportunity, was exhausted in the final moments and fell to the ground many times, but Djurdjevic still did not replace him. In fact, the national youth bench is not without people, Zhu Pengyu from Dalian InBev scored 2 goals as a substitute in the group stage to help the national youth beat Kyrgyzstan, but he sat on the bench in this game.

In the end, the national youth wasted 3 substitutions in vain, and was beaten by Saudi Arabia in stoppage time, and it was the substitute Juhayibi who scored for Saudi Arabia. After the game, a number of media people also posted articles questioning Djurdjevic. Li Xuan, the name of the book, complained: "Tears in an instant, it's a pity, Djurdjevic still considered overtime, and his grasp of the rhythm of the game was not as accurate as his opponent. How long will we have to wait for the World Junior Championships?! Isn't 20 years enough?”

Lu Yang believes that Jiu Shuai's delay in replacing Liu Chengyu is mainly because he does not want to give young players a psychological blow:He may have left the bet until extra time in this game, or he may feel that replacing Liu Chengyu is not conducive to the psychology of young players, in short, in addition to luck, the head coach's presence is responsible.”