Iraqi judoka Sajjad Ghanim Sehen Sehen was provisionally suspended on Friday after he tested positive for anabolic steroids
The World No 1 faces the possibility of being banned for up to two years.
Sinner unclear about CAS case ahead of Australian Open defence
Novak Djokovic expressed his frustration at being "kept in the dark" about world number one Jannik Sinner's doping case, saying in Brisbane on Sunday that it was not a good look for tennis.
The two cases shocked the tennis world with many fuming at how they were handled by the authorities.
India's top woman 400m runner Deepanshi has been suspended for flunking her dope test during the recent National Inter-State Championships.
A chunk of athletes, including Asian Games medallist Kiran and badminton player Krishna Prasad Garaga have been suspended by NADA
India's quartermiler Nirmala Sheoran has been handed an eight-year ban by National Anti-Doping Agency's (NADA) Disciplinary Panel after she returned positive for a banned substance in a test conducted last year.
Kumari's dope sample, taken out-of-competition by the AIU last year, was found to contain steroids
Sanjita Chanu had tested positive for an anabolic steroid during an in-competition testing at the National Games in Gujarat in September-October last year.
India sprinter Dutee Chand has tested positive for prohibited anabolic steroids during an out-of-competition testing and has been provisionally suspended.
Weightlifter Sanjita Chanu once again finds herself embroiled in a dope controversy.
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.
Dutee Chand had claimed before NADA's Anti-Doping Disciplinary Panel (ADDP) that it was a case of "unintentional consumption".
Navjeet Dhillon, a Commonwealth Games bronze medallist from 2018, had tested positive for a metabolite of the anabolic steroid Dehydrochloromethyltestosterone (DHCMT).
No official is willing to confirm the name of the dope offender
Gomathi Marimuthu approaches CAS, appeals against doping ban
The IWF said the samples of Oleg Chen and David Bedzhanyan, who are also serving provisional suspensions for separate potential anti-doping violations, contained the same anabolic agent found in Evstyukhina's sample.
Her four-year ban, announced by WADA on Friday night, will begin from June 26, 2018 -- the date of her sample collection.
If Sumit Malik's B sample also returns positive, he can be banned from the sport.
Seema had been given a four-year suspension by NADA's Anti-Doping Disciplinary Panel (ADDP) following the hearing on her positive test for banned performance enhancing drugs.
International medal-winning Indian woman boxer Neeraj (57kg), who was among the probables for 2020 Tokyo Olympics, has been provisionally suspended after failing a dope test.
The International Weightlifting Federation dropped the doping charge against Indian weightlifter K Sanjita Chanu due to "non-conformities" in the handling of her sample but the Commonwealth Games gold-medallist has demanded an apology and compensation for the "trauma" she has endured. The IWF made the decision based on the recommendation of the World Anti-Doping Agency (WADA). The 26-year-old, who claimed innocence since the beginning, was informed about the final verdict via an e-mail, signed by IWF's legal counsel Lilla Sagi.
Azeri weightlifter Valentin Hristov was stripped of his 2012 Olympics 56-kg bronze medal on Friday after he was one of three athletes to test positive for banned substances in re-tests conducted by the International Olympic Committee.
The National Anti-Doping Agency (NADA) has banned hockey goalkeeper Akash Chitke for two years after he tested positive for a prohibited substance earlier this year.
Caught in the dope net, Asian Games bronze-medallist javelin thrower Davinder Singh Kang on Sunday said the failed result is because of a declared medication he took for sore throat and he is confident of being cleared in the disciplinary hearing.
Jamaican Shelly-Ann Fraser-Pryce broke the 40-year-old Pan Am Games 200 metres record on Friday. The twice Olympic 100 metres champion clocked 22.43 seconds to win gold on Friday.
International athletics federation's Athletics Integrity Unit tweeted late on Tuesday to confirm Gomathi's dope flunk
A Japanese sprint canoeist is facing a life ban after admitting to spiking a rival's drink with an anabolic steroid to scuttle his Olympic dreams, the Kyodo news agency reported on Wednesday.
A summary of sports events and sports persons, who made news on Friday
Too much exercise and eating disorders are some of the underlying factors that may affect fertility in women, says gynaecologist Dr Archana Dhawan Bajaj,
The IOC said all four -- Victoria Valyukevich, a triple jumper who was eighth in the women's competition, hammer throwers Gulfiya Khanafeeva and Mariia Bespalova, and weightlifter Khadzhimurat Akkaev, who did not compete due to a back injury, had tested positive for anabolic steroid turinabol.
Chanu has decided to present her case before the hearing panel of the International Weightlifting Federation (IWF) in Hungary.
Russia was stripped of their women's 4 x 400m relay silver medal from the London 2012 Olympics after Antonina Krivoshapka tested positive for drugs in the re-testing of her sample, the International Olympic Committee said on Wednesday.
The International Olympic Committee (IOC) said it had disqualified weightlifting gold medallists Cao Lei (75kg), Chen Xiexia (48 kg) and Liu Chunhong (69kg) from the Beijing Games after they tested positive for prohibited substances.
The IWF has admitted to mentioning two different urine sample numbers in its communication of her dope flunk earlier this year, according to a letter that the world body sent to the National Anti-Doping Agency (NADA).
Haryana sprinter Dharambir Singh, who was barred from representing the country in the Rio Olympics at the last minute for failing a dope test, has been slapped an eight-year ban by the National Anti-Doping Agency.
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.
Norwegian cross-country skier Therese Johaug says she is 'devasted' after her country's skiing federation confirmed the 28-year-old had returned a positive test for a banned substance found in sunburn cream on Thursday.
The World Anti Doping Agency has rejected the National Anti Doping Panel verdict on wrestler Narsingh Yadav after he was given a clean chit to compete in Rio Olympic Games, according to reports on Monday.