Since the Rio Olympic Games, Ning Zetao's resignation has been widely concerned, but there are still many small partners who don't know much about it, so the author expounds the specific situation. It is reported that a few days ago, an official letter about Ning Zetao being expelled from the national team was circulated on the Internet, saying that he was no longer a member of the national team and was transferred back to the navy. The media also learned from the swimming center that the content of this official letter is true.

The letter also clearly pointed out that Ning Zetao accepted the advertisement in violation of state regulations, "endorsed the advertisement without approval", "disobeyed the competition arrangement of the national team" and "refused to participate in the relay race". The title and signature are stamped with the seal of "Swimming Management Center of the State Sports General Administration", and the signing date is 201610/0/0/0/8, that is, after the Rio Olympic Games.

After leaving the Ning Zetao national team, Ning Zetao's departure from the national team caused a heated discussion. It is reported that although the National Swimming Administration has not issued a document for a long time since the documentary was broadcast in Ning Zetao last year, it is certain that Ning Zetao's absence from the Budapest Swimming World Championships has also made the event powerful. Although some netizens pointed out that the official letter of the "red-headed document" was unprofessional, the media also confirmed the authenticity of the official letter from the relevant departments of the swimming management center. After the Rio Olympic Games, Ning Zetao faded out of the arena, and it was difficult to find him in the activities of the swimming team returning from the Olympic Games. After that, Ning Zetao also missed many games, which actually gave many viewers an answer. However, Ning Zetao responded that he didn't know he was deported. Generally speaking, the dispute between Ning Zetao and the swimming team is not a one-day event, otherwise such a situation would not have occurred.

To sum up, Ning Zetao quit the team not only for external reasons, but also for his own reasons. In the absence of athletes, personal image and national image are inseparable.