According to the reporter of Beiqing Daily from the swimming center, this official letter is true, and Ning Zetao is no longer a member of the national swimming team. The date of the official letter is 20161018, after the Rio Olympic Games. However, the swimming center official has not made any official explanation on this matter.
The feud between Ning Zetao, champion of Kazan World Swimming Championships, and the national team is suspected to have exposed the latest evidence. Recently, many media received an unsigned email with the theme "Ning Zetao has been expelled from the national team" in the official mailbox. There is a picture attached to the email, which is suspected to be taken from a red-headed document issued by the Swimming Management Center of the State Sports General Administration. After some media got the news, they immediately found many insiders to verify the authenticity of the documents. Many people close to the top of the swimming center and the local provincial team have confirmed that this document is true. Recently, local provincial teams have received this document one after another.
This red-headed document is called "Letter on Ning Zetao's Returning to the Navy for Military Training", with the prefix and signature stamped with the words "Swimming Management Center of the State Sports General Administration", and the signing date is 20161kloc-0/8. The document clearly lists Ning Zetao's violations of the relevant regulations of the State Sports General Administration and the Chinese Swimming Association, including "advertising without approval", "disobeying the competition arrangement of the national team" and "refusing to participate in the relay event qualifiers".