The World Anti-Doping Agency has opened compliance proceedings against the Russian Anti-Doping Agency (RUSADA) over what it said were inconsistencies in data supplied to WADA in January, WADA said on Monday.
The news means RUSADA is in danger of being declared non-compliant by WADA only months after a suspension was lifted, which could put increased pressure on the International Olympic Committee (IOC) to exclude Russia from the Tokyo Olympics next year for failing to ensure that its athletes are clean.
The WADA Executive Committee received a report from its Compliance Review Committee on Monday updating it on the analysis of data from the Moscow laboratory which contained the results of thousands of anti-doping tests undergone by Russian sportsmen and women.
"The ExCO was informed that further investigation ... of inconsistencies in Moscow Laboratory data had led WADA to open a formal compliance procedure against RUSADA on 17 September 2019," WADA said in statement.
WADA said the 47 cases currently being acted upon by international sport federations were not affected by the data inconsistencies.