Saturday, 27 February 2021 The Russian Biathlon Union (RBU) is taking the International Biathlon Union (IBU) to the Court of Arbitration for Sport (CAS) over its implementation of the decision from sport's highest court in the state-sponsored doping case. insidethegames understands the RBU has filed an appeal against the International Biathlon Union's (IBU) application of the series of sanctions imposed on Russia by the CAS in the country's dispute with the World Anti-Doping Agency (WADA). IBU secretary general Niklas Carlsson confirmed the organisation had been notified of the appeal and told insidethegames he believes it is a "political statement on a national level" from the Russian authorities.