Doping

Yep, a targetted re-test of a specific sample.

Biopassport tracks blood and steroid values to create a baseline so there must a have been a spike that made them break out the CIR.

https://www.uci.org/inside-uci/clean-sport/anti-doping/the-athlete-biological-passport

"The passport for each rider contains the results of individual urine and blood tests, a haematological profile consisting of the combined results of haematological parameters analysed in a series of blood samples, and a steroid longitudinal profile consisting of the combined results of steroid levels in a series of urine samples. By tracking these parameters consistently through a rider’s career, it is possible to establish the haematological/steroid profile of a rider in order to establish his/her “normal” levels and thus emphasize possible variations."