Speculating on whether Floyd doped or not is so last Saturday. We are beyond that now, and speculating on what excuse he is going to confabulate.
Gatlin lamely blamed a disgruntled masseuse. If Floyd need stoop so low as to blame an external wrongdoer, his soon to be former employer Phonak provides a potential villain, as it has earned a particularly notorious doping reptutation prior to Floyd. That Floyd is on record stating (as a joke) that Phonak gives him mystery gels that he just blithely consumes might turn out to be useful ammo for his case.
Floyd was tested on three consecutive days. Interestingly, he was "clean" on day 1, "dirty" on day 2, and "clean" again on day 3. Something sounds kinda fishy? Now, personally, I don't know if Floyd used banned substances or not. However, I'm inclined to believe that he didn't.