A German doctor convicted in a blood doping trial in 2021 is set to lose his medical licence, according to the authorities in the state of Thuringia. Sports doctor Mark S was sentenced to four years and 10 months in prison three years ago for violations of German medical laws and unlawful use of doping methods in sports. Having been in custody since 2019, he was prematurely released in 2022. The case made big waves in 2019 as raids were carried out at the Nordic skiing world championships in Seefeld, Austria. Mark S was arrested along with athletes from Nordic skiing and cycling who were then …