Ding Ning fans are concerned that Ding Ning was withdrawn from the World Cup for the fourth time by Guo Ping on the grounds of injury. People in China often say that things happen only three times, and the tolerance limit of the probability of a bad thing happening again and again is three times. However, this year is the fourth time that Ding Ning has retired. It happened that Ding Ning did well this year, and all the balls with good skills won. A few days before the announcement of his retirement decision, I also saw Ding Ning training normally. For various reasons, her fans are very angry. So this outbreak is a concentrated catharsis of grievances accumulated over the years. They can't accept that Ding Ning is a victim of egalitarianism every time.