The high jumper was handed a four-year ban in April 2021 by the Athletics Integrity Unit (AIU) but still retained his Olympic title.

All of his results from July 8 2013 were disqualified which means that his 2006 European title and 2012 World Indoor Championships silver remain intact.

"Initially, they wanted to appoint an additional four-year disqualification until 2028," a source in Silnov's camp said, as reported by Russian state-run news agency TASS.

"As a result, with the help of lawyers, he managed to reduce his sentence to one year.

"Andrey believes that it is pointless to further challenge the one-year disqualification, it is a waste of time.

"The situation looks ridiculous, as well as the first disqualification, which was imposed on the basis of far-fetched and unsubstantiated accusations."

The AIU extended the punishment for an additional four years after the 38-year-old attended an event in August 2021 organised by the Moscow Region Athletics Federation despite not being allowed at any such meets.

He was invited by the Federation, which is a member of national governing body the Russian Athletics Federation (RusAF), which is a member of World Athletics, because the high jump section was dedicated to his former coach Evgeny Zagorulko who died in April 2021.

Silnov was already retired, so the bans meant little in practice, although he was forced to step down as RusAF first vice-president in 2019 after it became public knowledge that he was under investigation for doping.

His initial ban was part of 11 suspensions issued by the Court of Arbitration for Sport on the same day, with four being given to Russians.

Among them was London 2012 women's 400 metres hurdles champion Natalya Antyukh, world indoor silver medal-winning 1500m runner Yelena Soboleva, and hammer thrower Oksana Kondratyeva.

The AIU said all four cases were based on an investigation into Russian doping for the World Anti-Doping Agency presented in 2016 by Canadian lawyer Richard McLaren.