This was announced by the International Sport Court CAS on Tuesday. On Friday, the CAS will deal with the objection of WADA in a public hearing in the Swiss Montreux.
The swimming World Association FINA had waived in the spectacular case to a penalty against the three-time Olympic champion.
Should the CAS still find him guilty, the 27-year-old is threatened with the end of the 2020 Olympic Games in Tokyo.
Test container destroyed with hammer
In an unannounced test at his home in September 2018, Sun and his followers suspected the authenticity of the controllers.
Thereupon a security man from Sun is said to have destroyed the test container with a hammer. The inspectors, who had tested on behalf of the globally operating Swedish anti-doping service provider IDTM, documented the incident. That had the English Sunday Times reported.
Originally, Sun should have appeared in September in front of the CAS, but he canceled this appointment because of "personal reasons".
At the World Cup in July in Gwangju / South Korea he had won gold over 200 m and 400 m freestyle. The fact that the Chinese was allowed to start at all, was sharply criticized – also on the part of the competition, which partly boycotted award ceremonies with him.