I rather like Simona and find this a bit hard to believe, but the fact that her sample was split into two, and when specimen B was analysed at her request it came up with the same result as specimen A, does suggest that something wasn't quite right. I wish her well in her fight against the ban but can't help thinking that this is going to be a tricky one to get out of.
For info - "Roxadustat has been linked to doping in the past, with the United States Anti-Doping Agency retesting samples in 2016 after saying it had been tipped off about the anaemia drug's use by athletes. The banned substance increases the production of red blood cells, helping endurance, and is in the same category of banned substances as EPO."