In fact, this is mainly related to the special competition system of the table tennis World Cup. It is different from other competitions. Only invited athletes can participate in the World Cup, which means that he adopts the invitation system. So what kind of athletes can accept his invitation? In fact, there are certain rules.
First of all, the singles champion of the World Table Tennis Championships last year or that year will definitely receive an invitation. Then the top 8 players of the Toyota Cup will also be invited, or the champions and runners-up of the Africa Cup America Cup and Australia Cup will also be eligible to participate. Finally, there are wild cards, which are usually issued to the host players or designated by ITTF.
Therefore, if it doesn't meet the requirements of life, the 20 19 men's football world cup and women's world cup will not be invited, so naturally they can't participate. Xu Xin, who ranks first in the men's world, naturally lacks the conditions to accept the invitation because he did not participate in the Asian Cup. Even if he is very strong, rules are rules, which is also a helpless move.
In fact, for these top table tennis players, they may take part in some competitions according to their own arrangements. I think it may be his expectation that they didn't receive the invitation this time, so you don't have to worry too much.