Nigerian sprinter Nzubechi Grace Nwokocha, who won gold in the 4x100m relay at this year's Commonwealth Games, has been provisionally suspended for the use of banned substances, the Athletics Integrity Unit (AIU) said on Saturday.
Romanian weightlifter Gabriel Sincraian and Russian boxer Misha Aloian have been stripped of their 2016 Olympic medals after failing doping tests at the Games, the Court of Arbitration for Sport said.
Five-time Grand Slam champion Maria Sharapova is putting her time away from tennis to good use.
A Greek athlete has failed a doping test, according to an IAAF official, and the father and coach of world indoor high jump champion Dimitris Chondrokoukis says his son has tested positive and withdrawn from the Olympics.
Australia's number one tennis player Nick Kyrgios has blamed "unfair and unjust treatment" at the hands of his country's Olympic Committee for his decision not take part in the 2016 Olympic Games in Rio de Janeiro.
A summary of Friday night's action in the season-opening leg of the Diamond League in Doha on Friday.
India's six top women athletes, including Asian Games double gold-medallist Ashwini Akkunji, were, on Friday, handed one-year bans for flunking dope tests earlier this year, virtually ending their chances of participating in the London Olympics next year.
Russian pole vaulter Yelena Isinbayeva has applied to world athletics governing body IAAF to compete at the Rio Olympics despite Russia's ban, athletics authorities in Moscow on Thursday. "Isinbayeva sent her application on Wednesday," Alla Glushchenko, the spokeswoman for the Russian athletics federation, told AFP.
Medvedeva sets world record, Canada lead team event
Salman Karimi, who withdrew from the Athens Olympics saying he had broken his hand, tested positive for drugs.
Olympic and world 400 metres champion LaShawn Merritt has failed three doping tests for a banned substance and accepted a provisional suspension, his lawyer said on Thursday.
The disgraced sprinter relinquished the five Olympic medals she won at the 2000 Sydney Games after admitting to the use of a prohibited substance.
Triple Olympic gold medal winner Kenenisa Bekele said he was bitterly disappointed to be left out of Ethiopia's team for the Rio Olympics and blamed members of the country's athletics federation he said knew nothing of the sport.
The water quality at the Olympic sailing venue in Rio de Janeiro is a serious issue but will be resolved by the time the Games begin next year, Rio Organising Committee president Carlos Nuzman said on Tuesday.
Denis Oswald, the International Olympic Committee's permanent chair of the disciplinary commission, said Valieva claimed there was a mix-up at a Court of Arbitration for Sport (CAS) hearing into whether she should be allowed to continue competing.
A bill submitted to Greek parliament says no security officer can take days off work between July 1 and September 30, 2004.
The situation around Valieva and the Russian team had been 'incredibly distracting' for other skaters.
An unnamed female athlete has tested positive for a "light stimulant" and has been reprimanded as she took the substance before the official Olympic period, the International Olympic Committee said on Thursday.
Narsingh Yadav's hopes of competing in the Rio Olympics appeared bleak after he failed a second dope test, which was conducted on his samples on July 5.
Satheesha Rai, stripped of two gold medals and a bronze at the 2002 Manchester Commonwealth Games for using a stimulant, has tested positive for the banned steroid stanozolol.
A revised World Anti-Doping Code, doubling the bans for cheats in sport, was adopted on Friday.
Rio de Janeiro mayor Eduardo Paes has described Australia's Olympic committee as a "source of aggressions" against Brazil after it banned the team's athletes from visiting the city's favelas during the Games in August. Australia's team chef de mission Kitty Chiller told News Ltd media on Sunday that their Olympians would be barred from going to the urban slums, even on official tours, in accordance with advice from a security expert. "There is still much unfamiliarity about Rio and Brazil," Paes told Brazilian media. "There is a certain dramatisation. And between us, the Australian committee has been a source of aggressions to Brazil." Rio's favelas are among the most violent and crime-ridden areas of the city. Australian Olympic Committee (AOC) president John Coates, a member of the International Olympic Committee's coordination commission, said in April 2014 that Rio's Games preparations were the worst he had ever seen and critically behind schedule. Coates was more generous in a January assessment, however, saying he felt "very positive" about the delivery of the Games.
Nine track and field athletes have been handed lengthy bans for doping violations in a crackdown on the use of prohibited substances in the lead up to the London Olympics, the International Association of Athletics Federations (IAAF) said on Wednesday.
The International Olympic Committee on Tuesday sanctioned four Russian Olympians who competed at the 2008 Beijing and 2012 London Games for failing drug tests, including silver medalist Maria Abakumova.
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.
Five-time chess world champion Anand and nine-time world champion Sethi will be mentoring the high-profile athletes signed up by Olympic Gold Quest, who are looking to improve India's showing from the last Games in London when they won six medals.
More than 30 athletes who have violated anti-doping rules will not be at the Vancouver Olympics, proving the fight against doping is ensuring cleaner Games, the World Anti-Doping Agency (WADA) said on Thursday.
The Board of Control for Cricket in India's stand with regards to participation in the 2024 Olympic Games in Paris, audit firm Deloitte's presentation on financial irregularities and revision of pay structure in domestic cricket are on the Committee of Administrator's agenda when they meet BCCI's top office-bearers, in New Delhi, on Wednesday.
Here are the Indian Super Moms' at the Hangzhou Asian Games beginning on September 23.
Jamaica's twice 200 metres Olympic champion Veronica Campbell-Brown has escaped with a public warning by the Jamaica Athletics Administration Association for her use of a banned substance.
She finished second in the qualifying round at Tokyo to progress to the final, where she finished sixth with a best throw of 63.70m. It was the third-best performance by an Indian in a field event, at the Games.
Thomas Bach's response to a report that found Russia concealed hundreds of positive doping tests ahead of the Sochi Winter Games will determine his legacy as International Olympic Committee president, athletes leaders said on Monday.
Former IOA secretary general Randhir Singh said that the IOC's decision to ban the Indian Olympic Association gives an "opportunity" to clean the mess, and insisted that the international body is not against the country but against the system.
Sepp Blatter believes that any boycott of the Sochi Winter Olympics would change nothing and those who refused to go in protest against alleged discrimination in Russia would be "surrendering".
American Holloway wins third straight world 110m hurdles title
Shot putter Manpreet Kaur smashed an 18-year-old national record to win gold and qualify for next year's Olympics as Railways dominated the show on the opening day of the 55th National Open Athletics Championships in Kolkata.
A ban imposed on Russia's Paralympic team to compete in Rio is cynical and immoral, President Vladimir Putin said on Thursday, while saying that Moscow acknowledged its mistakes and would improve the national anti-doping system.
The IOC had also stated that its Executive Board reserves the right to take any further action at any stage of the process depending on how the situation develops.
Ms Usha may soon discover that winning four gold medals at the Asian Games and qualifying for the Los Angeles Olympics is a walk in the park compared with the challenges of stabilising governance at the IOA, observes Kanika Datta.
Australia's Winter Olympic athletes will also be subjected to an alcohol ban in the Sochi athletes' village along with the Summer Games counterparts.