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

If his urine sample doesn't come back dirty, yeah, he's a champion. But it did, ... You can't cheat and get caught. Now we will see how it looks when he fights Guinn. I don't care (about fighting him). Don't matter to me.

Wheeler says it happened after he refused to give a urine sample.

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.

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.

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.