The Court of Arbitration for Sport on Thursday lifted life bans on 28 of the 43 Russians accused of doping at the 2014 Sochi Winter Olympics, meaning some could still compete at this month's Pyeongchang Games.
Dozens of Russian athletes banned by the International Olympic Committee for life over doping began an appeal against their suspension on Monday at the world's top sports court.
Whistleblower Grigory Rodchenkov, the source of revelations about state-sponsored doping in Russia, is expected to testify next week at a Court of Arbitration for Sport hearing involving the appeals of 39 Russians banned for doping.
Russia were banned from the 2018 Olympics on Tuesday over state-sponsored doping but the Lausanne-based International Olympic Committee (IOC) said Russian competitors would be able to compete "under strict conditions".
Disgraced ex-IAAF president Lamine Diack's son Papa Massata Diack, former Russian athletics chief Valentin Balakhnichev and coach Alexei Melnikov lost their appeals on Monday against life bans imposed over corruption.
Russian heptathlete Tatyana Chernova was banned by the Lausanne-based Court of Arbitration for Sport (CAS) on Tuesday for doping and stripped of her 2011 world title, effectively handing the crown to Britain's Jessica Ennis-Hill.
The International Olympic Committee (IOC) has hired Russian doping whistleblower Vitaly Stepanov as a consultant and is helping his runner wife Yuliya in recognition of their efforts, a spokesman said on Monday.
Russian competitors will not compete in next month's Rio Paralympics after the country lost an appeal on Tuesday against a suspension issued over a vast, state-run doping programme.
The International Olympic Committee reported 45 new doping failures on Friday from the 2008 Games in Beijing and London 2012, bringing the total number of positive drug test to 98 since a retesting programme was launched.
The international sports tribunal on Thursday rejected an appeal by 67 Russian athletes seeking to overturn an IAAF doping ban on them competing at the Rio Olympics.
The International Olympic Committee barred Russia's Sports Minister Vitaly Mutko from the Rio Games and withdrew backing for international events in Russia over a state-run doping programme, but delayed ruling on a complete ban on the country until after a key court case on Thursday.
The Court of Arbitration for Sport, based in Lausanne, said on Monday it has put back its ruling on the two-year doping ban for Maria Sharapova for two months to September, ruling the tennis superstar out of the Rio Olympics.
The Lausanne-based Court of Arbitration for Sport (CAS) said on Monday it will decide whether to overturn the ban against Russia's athletics programme by July 21st, two weeks before the start of the Rio Games.
Olympic medallists from the Beijing and London Games will be targeted as a priority as the reanalysis of old samples
is reinforced, the Lausanne-based International Olympic Committee (IOC) said on Wednesday.
Professional boxers can compete at the upcoming Olympic Games in Rio de Janeiro, the sport's governing body AIBA ruled in a landmark decision on Wednesday.
The Lausanne-based International Olympic Committee (IOC) on Friday reported 23 new doping failures from retests on 265 samples from the 2012 London Games.
Thirty-one athletes from 12 countries failed doping tests after new analysis of samples taken from the 2008 Beijing Olympics and could be banned from the Rio Games, the IOC said on Tuesday.
The Lausanne-based International Olympic Committee (IOC) on Thursday called for an immediate probe into a fresh wave of revelations concerning a Russian doping scandal at the 2014 Winter Olympics in Sochi.
Selected samples from the 2008 and 2012 Olympics in Beijing and London are to be reanalyzed ahead of the Rio Games in
an initiative aimed at protecting clean athletes, the International Olympic Committee (IOC) and the World Anti-Doping Agency (WADA) announced at a symposium in Lausanne on Tuesday.
Swiss-based food giant Nestlé has terminated a sponsorship programme with world athletics' governing body (IAAF) over fears that the corruption and doping scandals surrounding the sport could damage the company's reputation, a spokeswoman said on Wednesday.
Switzerland's anti-doping laboratory did not break rules set by the World Anti-Doping Agency (WADA) when it destroyed analyzed blood samples, according to an internal audit ordered amid a massive scandal rocking world athletics.
Roger Federer has warned tennis chiefs they must bring in tougher measures to weed out drug cheats in a bid to avoid a repeat of the Russian athletics doping scandal.
