Some of the main points of the World Anti-Doping Agency (WADA) Independent Commission's (IC) report into allegations of widespread doping in Russian athletics. The commission was set up after Germany's ARD television said in a documentary programme aired on December 3 last year that it had found evidence of systematic doping and cover-ups.
Former tennis world number one Maria Sharapova said on Monday that she failed a drug test at the Australian Open due to a substance she has been taking the last 10 years for health issues.
In what may come as an embarrassing revelation for India's anti-doping machinery, 500 sportspersons, mostly weightlifters and track-and-field athletes, have failed drug tests conducted by NADA in the last four and a half years.
Lance Armstrong's promise to come clean about doping is "a little late", the head of the United States Anti-Doping Agency (USADA) said on Thursday, accusing the disgraced cyclist of trying to use events to "gain advantage".
Cypriot weightlifter Antonis Martasidis and an unnamed Greek competitor have tested positive for banned substances and have been expelled from the Rio Olympics, their teams said on Friday.
Summary of sports events and persons who made news on Wednesday.
A summary of sports events and persons who made news on Thursday
'I don't think anyone at FINA is going to stand up for the athletes so the athletes have to stand up for themselves'
Caeleb Dressel lit up the pool by winning his fourth, fifth and sixth gold medals on Saturday but even his electric performance failed to brighten the mood on a dark day at the world swimming championships in Gwangju.
Russia could be banned from participating in the Pyeongchang Winter Olympics if proposed changes to the World Anti-Doping Agency Code announced on Thursday are fast-tracked.
Russian Evgeniia Kolodko has been stripped of her shot put silver medal from the London 2012 Olympics after testing positive for banned substances in a re-test, the International Olympic Committee said on Saturday.
Sanjita Chanu will be conferred with the Arjuna award as per a 2018 Delhi High Court order, which directed the selection committee to consider her and keep the decision in a sealed cover to be disclosed only if she was absolved of the doping charges.
Russia still has a shot to compete in the athletics competition at the 2016 Olympics if they can prove they are drug free, the head of a probe into the country's doping scandal said on Tuesday.
A summary of sports events and sports persons, who made news on Tuesday
World indoor 1500 metres champion Abeba Aregawi has been suspended from Swedish athletics after she tested positive for a banned substance, the national federation said on Monday.
Russian President Vladimir Putin said on Friday World Anti-Doping Agency (WADA) records leaked by hackers raised a lot of questions with healthy athletes seemingly taking banned substances, TASS news agency reported.
A summary of sports events and persons who made news on Friday
"The IAAF's delaying publication for so long without good reason is a serious encroachment on the freedom of publication," the researchers said in a statement.
Mirabai Chanu was the historic success story of Indian weightlifting in a blemish-free 2017 in which the sport managed to stay clear of the dope scandals that have destroyed its credibility in the past.
European Athletics president Svein Arne Hansen does not expect Russia to return to international competition in time for next year's Olympic Games in Rio de Janeiro.
By forcing Kenyan athletes to undergo additional drugs tests before allowing them to compete in Rio, the International Olympic Committee is trying to intimidate his countrymen, a former running champion said on Wednesday.
The World Anti-Doping Agency (WADA) faces a challenge to tackle cheating in sport while it has an annual budget of less than the income of many top athletes, its president Craig Reedie said. Lack of money could equally prove a handicap for a proposed independent testing authority, said Reedie, who also expressed support for global athletics chief Sebastian Coe and said WADA was in a state of "peace not war" with Coe's troubled sport. "I could do with a lot more money," Reedie said in an interview with Newsweek published on Saturday. The Scot said governments decided their own contributions to WADA's budget, which were then matched by the International Olympic Committee (IOC). "The total is not nearly enough," he said. "WADA's total annual budget of $30 million a year is exceeded by many athletes around the world who make more than that themselves in one year."
Tainted wrestler Narsingh Yadav was exonerated of doping charges by the National Anti-Doping Agency panel, probing the positive tests on his urine samples on Monday. It ruled "there is no negligence on the athlete's part and he is a victim of sabotage".
'We are trying passionately to protect those clean athletes who are going to Rio 2016'
On Wednesday, the Indian Weightlifting Federation (IWF) wrote to the sports ministry to comply with the High Court order.
Anti-doping officials believe world 100 metres record holder could have taken a cocktail of drugs including human growth hormone and EPO.
Punia had trained in Russia to prepare for the trials, which are being organised by the IOA ad-hoc panel.
Long jumper Darya Klishina, the only Russian athlete cleared to compete in this summer's Olympic Games in Rio, says she does not feel a traitor.
The National Anti-Doping Agency (NADA) carried out a search at the National Institute of Sports in Patiala last month and seized containers of the substance from the athlete's room, its director general Navin Agarwal told Reuters by telephone.
Olympic quick takes - Brazil lifter Reis suspended from Games after positive drug test.
His dream of representing the country in Rio Olympics shattered after a verdict of the CAS, a devastated Narsingh Yadav, on Friday, said that he will do everything to prove his innocence.
Unrepentant and seemingly unconcerned, Lance Armstrong was going about his business as usual on Thursday as the cycling world was left reeling by the revelations about his alleged role as a doping ringleader.
The International Cricket Council will conduct random dope tests during the World Twenty20 Championship in India, which is a regular practice in all ICC events, Tournament Director M V Sridhar said on Thursday. "The random dope tests have been a part of ICC events for a long time. Random dope tests are performed at all ICC events and it is not a new phenomenon," Tournament Director M V Sridhar told PTI. Sridhar clarified that a series of drug scandals that have recently rocked the sporting world, including tennis star Maria Sharapova's revelation, has not prompted the ICC to take this step as dope tests have been in practice since 2011. "I have never said that it is being done because of drug test failures as this has been a practice for a long time," Sridhar insisted. "ICC events have had dope tests since 2011. They (other sports) have their own anti doping agency which performs as ICC is not part of WADA and cricketers have not signed any whereabouts clause. "For the record, ICC had performed random dope tests at 2011 World Cup, T20 editions in 2012 and 2014. There are times when these dope tests are done during training sessions," Sridhar added.
TUEs are issued by sports federations and national anti-doping organizations to allow athletes to take certain banned substances for verified medical needs.
The International Olympic Committee (IOC) will retest frozen samples from previous Games after an improved testing method led to hundreds of positive cases that went undetected, according to a German television channel.
Summary of sports events and persons who made news on Monday.
Indian wrestler Narsingh Yadav has been banned for four years by the Court of Arbitration for Sports (CAS) following an appeal by the World Anti-Doping Agency (WADA).
Russian long jumper Darya Klishina will compete at the Rio Olympics after her ban from the Games was struck down by sport's highest court on the eve of her event.
Lance Armstrong and his team ran the most sophisticated doping programme in sport according to the United States Anti-Doping Agency (USDA) which released its report on the case against the US Postal cycling team on Wednesday.
If the United States Anti-Doping Agency is right, then Lance Armstrong cheated his way to the top of the cycling world through an elaborate doping scheme never seen before in the sport.