The trio of biathletes appealed to the CAS following sanctions by the IOC Disciplinary Commission, after their alleged involvement in Russia’s state-sponsored doping scheme.

It followed evidence from the McLaren Report, as well as subsequent investigations by IOC Commissions.

The IOC’s Oswald Commission decision on Zaitseva was also one of the stronger verdicts delivered.

It claimed the Olympic gold medallist at Turin 2006 and Vancouver 2010 was a knowing participant in the state-sponsored doping scheme.

The Commission’s full reasoned decision also ruled that samples given by Zaitseva, Romanova and Vilukhina had marks indicative of tampering and were found to contain abnormal levels of salt.

But in February 2018, the CAS overturned 28 cases involving Russian athletes, stating “the evidence collected was found to be insufficient to establish that an anti-doping rule violation was committed by the athletes concerned”.

A further 11 cases were found to have enough evidence to uphold the sanctions.

Zaitseva, Romanova and Vilukhina – who had already retired – were the only athletes whose cases were held over.

Separately, Zaitseva, Romanova and Vilukhina filed a lawsuit against Rodchenkov.

The lawsuit was backed by Russian oligarch Mikhail Prokhorov, former owner of the National Basketball Association team the Brooklyn Nets.

It claimed Rodchenkov defamed the three biathletes.

In a comment to insidethegames, WADA said it “notes the decisions published by the Court of Arbitration for Sport in these cases and will assess the full written judgements when they become available.

“WADA cannot comment further at this time.”