Under the landmark decision, which also excludes the country from the 2022 Beijing Winter Games, Russians will still be allowed to compete, but only as neutrals.
A CAS panel must decide whether to confirm the four-year ban WADA imposed on Russia last month after considering Russia's case against the epic sanction.
The AIU's announcement comes after the World Anti-Doping Agency (WADA) decided last month to ban Russia for four years from major global sporting events, including the 2020 Tokyo Olympics and the 2022 World Cup in Qatar, over manipulated doping data.
In another blow, the International Association of Athletics Federations (IAAF) maintains a ban on the Russian athletics federation pending analysis of the data.
The Russian Biathlon Union has revealed that Austrian police officers visited members of the nation's biathlon team to interview them over possible doping violations.
Russian athletes will return to competition across all sports after the World Anti-Doping Agency lifted ban on Russia's anti-doping agency, a decision greeted with dismay by campaigners and many countries.
The World Anti-Doping Agency's decision brings to a close one of sports' most notorious doping scandals but is bitterly disputed by hundreds of athletes and the industry at large.
Russia’s Ministry of Sport acknowledges issues in the country, opening the way for the Russian anti-doping agency RUSADA to be reinstated following its suspension in 2015 after a WADA commissioned report revealed widespread doping.
A report has alleged that there was institutionalised manipulation of the doping control process before, during and after the 2014 Sochi Olympic and Paralympic Games.
Russian President Vladimir Putin suggested the United States could be using its influence in international sports organisations to create problems in the Russian presidential election.
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