The World Anti-Doping Agency (WADA) is considering a blanket ban on countries whose athletes regularly dope in the wake of a series of damaging blows for the sport in recent days, according to its president Craig Reedie.
The American sprinter will miss the Athens Olympic Games and all her results since December 15, 2000, have been disqualified.
Sensational media reports of widespread blood doping in world athletics has also pointed the finger of suspicion at Indian athletes, though experts in the country are not very clear about how it could have happened.
A Russian whistleblower who helped uncover the biggest doping scandal in decades has told Reuters that the International Olympic Committee (IOC) is more concerned about protecting the organisation than ridding world sport of drugs cheats.
Double world sprint champion Kelli White was one of several big names to flop at the Qatar Super Grand Prix.
Young Bangladesh pacer Kazi Anik Islam has been handed a two-year ban by the Bangladesh Cricket Board for failing a dope test in 2018. Kazi, who was Bangladesh's leading wicket-taker in the 2018 Under-19 World Cup, tested positive for Methamphetamine, a prohibited substance, during a National Cricket League game in the same year. The 21-year-old admitted to the offence.
Tearful former double sprint world champion Tyson Gay said on Sunday he has tested positive for a substance he could not identify and is pulling out of next month's world championships in Moscow.
Russia has been banned from the 2018 Pyeongchang Winter Olympics after the IOC found evidence of an "unprecedented systematic manipulation" of the anti-doping system that has led to a series of bans for the country's athletes in recent months.
China's world and Olympic swimming champion Sun Yang served a three-month ban earlier this year after testing positive for a banned stimulant, the China Anti-Doping Agency (CHINADA) said on Monday.
Sports Minister Vijay Goel on Tuesday said that the government will provide all support to help dope-cleared wrestler Narsingh Yadav represent the country at the forthcoming 2016 Olympic Games in Rio de Janeiro.
India's double-Olympic medal winning wrestler Sushil Kumar, on Saturday, conceded that he has met top officials of the WWE but ruled out any immediate move to professional wrestling.
Jamaica's Olympic sprint champion Usain Bolt has "no problem" with plans by the World Anti-Doping Agency (WADA) to test the hair follicles of athletes in a bid to clamp down on drug cheats in sport.
The weight category sports at the Olympics are wrestling, boxing, taekwondo, judo and weightlifting. Most of these are combat sports and weight categories are designed to match athletes with competitors of similar size.
Sharapova, 29, had called the ITF's original ruling "unfairly harsh" because she had not intentionally violated anti-doping rules.
Double Olympic pole vault champion Yelena Isinbayeva, a fierce critic of a Russian track and field ban at the Rio Olympics, was elected an International Olympic Committee member on Sunday but a third of the votes were against her.
The International Judo Federation -- which lists Russian President Vladimir Putin as its honorary president -- will allow the sport's Russian squad to participate in the Olympics, its head told Reuters on Tuesday.
Partial sanctions against Russian athletes over the country's state-run doping system are preliminary, International Olympic Committee (IOC) President Thomas Bach said on Sunday, defending the organisation's position amid vocal criticism.
The court said no hearing date had been fixed yet and no further information would be provided for the moment.
Olympic quick takes - Brazil lifter Reis suspended from Games after positive drug test.
Russia still needs to demonstrate a "cultural shift" in its commitment to clean sport if its track and field athletes hope to compete under the nation's flag again, IAAF President Sebastian Coe said on Friday.
'I don't think anyone at FINA is going to stand up for the athletes so the athletes have to stand up for themselves'
Jamaican Olympic sprint relay gold medallist Nesta Carter has returned an anti-doping violation for the banned stimulant Methylhexanamine after the re-testing of 454 samples from the 2008 Beijing Games, two sources familiar with the case have told Reuters. The Jamaican team of Carter, champion sprinter Usain Bolt and two other sprinters had won a gold medal in the relay at the 2008 Olympics. The sources, who spoke on condition of anonymity, said traces of Methylhexanamine were discovered in Carter's "A" sample, part of a batch of 454 from the 2008 Games that the International Olympic Committee (IOC) ordered to be re-tested. Carter could face sanctions only if his "B" sample also tests positive for the substance. Reuters has not seen the laboratory results. Neither Carter, who won gold in the 4x100 metres relay with Jamaican team mates Usain Bolt, Asafa Powell and Michael Frater in Beijing, nor his agent replied to repeated requests for comment.
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.
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).
Australia has backed a World Anti-Doping Agency (WADA) recommendation that Russia be banned from international athletics, including the 2016 Olympics, after a report alleged systemic state-backed cheating.
The International Judo Federation said on Monday that Kosovo's judo gold medallist Majlinda Kelmendi had refused to take an unscheduled drug test in France ahead of the Rio Games but that the procedure looked "questionable" and any sanction given would not be applied outside France.
Olympic long jump champion Greg Rutherford has branded the International Olympic Committee's decision not to impose a blanket ban on Russia at next month's Rio Games as "spineless" and expressed surprise that more athletes were not speaking out.
The former head of Russian athletics Valentin Balakhnichev, the country's former head coach Aleksey Melnikov, and Papa Massata Diack, the son of the former IAAF President Lamine Diack, have all been banned from the sport for life over corruption charges.
Australian Olympic champion rower Kim Brennan has spoken of her deep disappointment that her integrity as a clean athlete has been called into question over a shot of adrenaline administered in a medical emergency.
A summary of sports events and persons who made news on Monday
Summary of sports events and persons who made news on Wednesday
Russian tennis player Svetlana Kuznetsova blamed politics for the decision to ban her country's track and field athletes from the Rio Olympics and said it was unfair to group them all together as doping cheats.
Reaction to the International Association of Athletics Federation (IAAF) council's vote to provisionally suspend Russia from the sport for widespread, state-sponsored doping
Summary of sports events and persons who made news on Monday.
A summary of sports events and persons who made news on Monday.
Indian wrestler Yogeshwar Dutt is not keen to collect the upgraded silver medal from 2012 London Olympics on humanitarian grounds given that the original second place finisher's positive dope test came after his death.
Winning gold medals will prove easier than winning back fan trust, admitted IAAF chief Sebastian Coe as he prepared to open the world indoor athletics championships on Thursday.
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.
Star India wrestler Yogeshwar Dutt will have to wait to know whether his bronze medal from the 2012 London Olympics is upgraded to silver till the time his sample is cleared by the World Anti-Doping Agency (WADA). Reports emerged that the grappler's bronze would be upgraded to silver after second-place finisher of the London Games -- late Besik Kudukhov of Russia -- was stripped off his medal for failing a dope test.