It is also the first National Games after the two important regulations on doping control were issued, and it's an important opportunity to check our work.

If an athlete misses two out-of-competition tests, it will be counted as a positive case as well, and the athlete concerned will face at least a two-year suspension.

Sun's urine sample taken after the Beijing International Marathon returned negative results, so she can keep her title for the marathon race.

A verbal appeal is not enough, and we require a formal application. It has not yet been decided as to when sample B will be tested.