She waived the right to have her B sample analysed.

Rebellin's agent sent a request for the analysis of the B sample.

Then a "B" sample of his urine was found to be negative.

My brother calls me at 2 a.m. crying when the B sample came back negative.

If the B sample comes up negative, the case is dropped.

Or unless the B sample shows a normal ratio, in which case he would be cleared.

But Kay said the B sample could come back negative.

The athletes have yet to be formally identified because analysis of their B samples is pending.

Jones's B sample is expected to be tested in the next two weeks.

But to do it even before the B sample has been tested?