Russia has been at odds with the Olympic movement ever since its own Sochi Winter Games in 2014, where its athletes were found to have benefited for years from a large-scale state-sponsored doping programme - something Moscow denied.
Samples from the probables for the Twenty20 World Cup, including fast bowlers Shoaib Akhtar and Mohammad Asif, have been taken for testing by WADA laboratory.
Jordan striker Ahmad Hayel has been ruled out of Friday's Asian Cup match against Palestine in Melbourne after a "cancelled" doping test, the team said on Wednesday.
In June, Gupta was handed a retrospective eight-month suspension for an "inadvertent" doping violation. The 27-year-old's suspension started from January 15 and will end on September 14.
Winter Games' least taxing and physically demanding sports feel it necessary to use performance-enhancing drugs
Victor Conte, the man at the centre of what was the United States's biggest doping scandal, believes the latest drug scandal to rock the sports world is all part of a cover up to protect the bottom line.
Four Pakistan players including captain, Shahid Afridi, Shoaib Akhtar, Kamran Akmal and Mohammed Yousuf, currently touring England have cleared their respective dope tests conducted by the World Anti-Doping Agency (WADA).
Disgraced cyclist Lance Armstrong once offered to donate nearly $250,000 to anti-doping efforts, the head of the United States Anti-Doping Agency (USADA) tells 60 Minutes Sports in an interview to be aired 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.
CAS said that the Olympic Athletes from Russia mixed doubles curling team, who won bronze at the Games, had been disqualified from the competition.
Vikas Thakur, who claimed a bronze medal at the ongoing Commonwealth Games, was searched and dope-tested on the day of his departure from the event on unexplained suspicions.
Kenya, facing scrutiny from world anti-doping officials and criticism that it is not doing enough to tackle the problem, has banned seven more athletes for doping offences, raising the total number of Kenyan drug cases in the last three years to 40.
The National Anti-Doping Agency (NADA) Director General Navin Agarwal confirmed that they found two samples taken fromNarsingh Yadav positive for dope.
Disgraced cyclist Lance Armstrong, who was stripped of his seven Tour de France titles for doping, is weighing whether to admit he used performance-enhancing drugs, The New York Times reported.
A low-down on the eight runners -- four men and four women -- who finished second in their qualifying heats to make the Olympic cut.
Andre Russell looks set to play in the World Twenty20 after the Jamaica Anti-Doping Commission said on Friday the West Indies all-rounder would not be suspended pending a hearing into his "anti-doping whereabouts" rule violation.
Russian Sports Minister Vitaly Mutko said on Thursday his country's doping scandal was payback from those unhappy Russia had won the rights to host the 2018 FIFA World Cup.
Russia's 2011 world champion Sergei Bakulin and silver medallist Vladimir Kanaykin have also been banned for failing doping tests, RUSADA added on its website (www.rusada.ru).
Russian Olympic bobsledder Nadezhda Sergeeva has tested positive for a banned performance-enhancing drug, the Russian bobsleigh federation said in a statement on Friday.
Russian athlete Olga Pyleva, who won the silver medal in the 15km individual biathlon, was suspended pending a disciplinary investigation into doping.
The doping suspension of Croatian tennis player Marin Cilic has reportedly been reduced from nine months to four months by the Court of Arbitration for Sport (CAS), making him eligible to return to playing from October 26 this year.
'I'm always surprised when I walk off court after a final and I'm like 'where is anti-doping?'
Independent investigators found that the World Anti-Doping Agency behaved in ways "completely inconsistent" with testing rules.
The scandal revolves around accusations that money was demanded from top athletes to 'bury' medical tests showing drug use
Italy's Matteo Arnaldi produced a sensational performance to take out sixth seed Andrey Rublev and reach the last 16 of the French Open on Friday.
Here are some reactions from the world of sport on of widespread state-sponsored doping by Russian athletes at the 2014 Sochi Olympics.
Slovenia men's ice hockey player Ziga Jeglic has tested positive for a banned substance and has been suspended for the remainder of the Pyeongchang Winter Olympics, the Court of Arbitration for Sport said on Tuesday.
Indian shot putter Inderjeet Singh, who returned positive for banned substances last month, alleged that his dope samples might have been tampered with as the National Anti-Doping Agency gave him two different results on the same sample collected on June 29, a claim denied by the NADA. Inderjeet, one of the 36 Indian track and field athletes who qualified for the ongoing Rio Olympics, circulated documents at a press conference which showed that the National Dope Testing Laboratory had given two different results of the A sample taken on June 29 during the National Inter-State Athletics Championships in Hyderabad.
A summary of sports events and sports persons, who made news on Thursday
Doping is more rampant among junior athletes than top ranked ones and the National Anti-Doping Agency should "tighten the screws" to curb the menace, Athletics Federation of India president Adille J Sumariwalla said on Sunday.
Italy captain Fabio Cannavaro was cleared of doping on Monday after failing a drugs test following treatment for an insect sting, the Italian Olympic Committee (CONI) said.
Allegations by a former head of Russia's drug testing laboratory that dozens of Russian athletes used doping when they competed at the 2014 Sochi Olympics are "slander by a turncoat" and are absolutely groundless, the Kremlin said on Friday.
The US Anti-Doping Agency (USADA) has brought formal doping charges against US cyclist Lance Armstrong and he has been immediately banned from competition in triathlons as a result, the Washington Post reported on Wednesday.
Roger Federer said he trusts the anti-doping procedures in tennis despite rival Novak Djokovic's claim that fellow Serb's Victor Troicki's one-year ban was the result of negligence by the authorities.
The Olympic weightlifting competition has been hit by three new doping cases on the eve of the games after two Turks and an Albanian tested positive for banned substances.
The AICS said a National Anti-Doping Organisation would soon be formed to tackle the menace.\n\n
World soccer's governing body called for a life ban for some doping offences.
National Anti Doping Agency (NADA) will conduct all tests for the Commonwealth Games (CWG) to be held in October next year.
Governments should look at criminalising doping in sports and increasing the resources of anti-doping agencies to include investigative functions in the wake of the Lance Armstrong revelations, the president of Cycling Australia has said.
Chinese Olympic women's swimmer Chen Xinyi tested positive for a banned substance at the Rio Olympics on August 7, state media said on Friday citing the country's swimming association, the latest doping scandal to mar competition at the Games.