Britain's Sunday Times and Germany's ARD say the results from the database of the sport's governing body, the International Association of Athletics Federations (IAAF), show evidence of widespread cheating among long distance runners.
The ruling by the CAS, sport's highest tribunal, will be taken into consideration by the International Olympic Committee (IOC) as it ponders whether to impose a blanket ban on Russia from all sports.
National Anti-Doping Agency Director General Navin Agarwal says all the Rio Olympics-bound sportspersons have undergone testing for banned substances and are dope-free. He, however, conceded that there were issues regarding testing of a few Rio-bound sportspersons as they were not available at the 'whereabouts' provided by them as mandated under the Anti-Doping Administration Management System (ADAMS) of the World Anti-Doping Agency, but NADA was able to get their testing done later on.
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.
Olympic quick takes - Brazil lifter Reis suspended from Games after positive drug test.
Maria Sharapova's lawyer blasted WADA chief Craig Reedie for making remarks about the five-times grand slam champion at a conference in London on Monday and said the Russian tennis player was owed an apology.
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.
Factbox on Russia's Maria Sharapova who was banned until January 2018 on Wednesday after testing positive for the banned drug meldonium at this year's Australian Open.
Summary of sports events and persons who made news on Monday.
Individual Russian track and field athletes assessed as clean will be able to compete for their country in Brazil, the Olympic Games' top official said on Tuesday, diluting a blanket ban the sport's global federation had called for.
'if my body is giving me company why should I stop the sport? Some foreign athletes run till 35 or 37. So I wanted to set an example for other athletes that age does not matter,' says MR Poovamma, Arjuna Awardee and the senior-most member of the Paris Olympics-bound Indian women's 4x400m relay team.
Cycling's world governing body hit back at the US Anti-Doping Agency on Friday after being accused by USADA president Travis Tygart of failing to deal with the consequences of the Lance Armstrong doping scandal.
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.
Summary of sports events and persons who made news on Tuesday
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.
With speculation rife that Rio Olympics silver medallist Venus Williams was allegedly allowed to use prohibited substance under Therapeutic Use Exemptions (TUEs) clause, Indian tennis ace Sania Mirza on Friday rubbished reports suggesting that she has demanded the All India Tennis Association (AITA) to raise the matter with the appropriate authorities.
A summary of sports events and persons who made news on Friday
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.
Former world sprint champion Tyson Gay's 'B' sample from an out-of-competition test in May has been confirmed positive for a banned substance, the U.S. Anti-Doping Agency (USADA) said on Friday, while adding he had returned another positive test.
While the American says he is bringing the matter to a close, in truth this may just be the beginning.
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.
Sharapova, 29, had called the ITF's original ruling "unfairly harsh" because she had not intentionally violated anti-doping rules.
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.
A summary of sports events and persons who made news on Monday
Former Commonwealth Games gold-medallist Narsingh Pancham Yadav was elected chairman of the Wrestling Federation of India's Athletes' Commission in Varanasi on Wednesday, completing a process that was mandated by the sport's world governing body.
The teams of National Anti Doping Agency (NADA) collected samples of 81 players of all the teams who are taking part in the ongoing third World Cup Kabaddi.
A lengthy ban for doping would be devastating for five-times grand slam champion Maria Sharapova but she would survive it, Nick Bollettieri, the man who discovered her, said on Tuesday.
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.
Nine more kabaddi players were caught, on Thursday, for using banned steroids, taking the total number of dope flunked players who were tested early this month during the selection trials of the World Cup to 19.
A much-awaited report on Lance Armstrong's lifetime ban should be sent to cycling's world governing body no later than October 15, a spokesman for the U.S. Anti-Doping Agency (USADA) said on Wednesday.
The United States Anti-Doping Agency (USADA) will send Lance Armstrong's file to the cycling world governing body this week to get the American rider's life ban ratified, its chief Travis Tygart told French daily L'Equipe on Monday.
The 23-year-old world champion crossed the line in the Ras al-Khaimah half marathon three seconds quicker than the mark set by fellow Kenyan Florence Kiplagat in Barcelona two years ago, although the new record remains subject to ratification.
Germany, preparing in Italy for the World Cup starting next month, were taken by surprise when six doping testers showed up unannounced on Wednesday. 'Six NADA (National Anti-Doping Agency) testers arrived today for an unexpected doping control,' German soccer federation spokesman Harald Stenger told reporters.
World athletics' governing body has suppressed a 2011 survey that reveals that up to a third of the world's top competitors admitted using banned performance-enhancing techniques, Britain's Sunday Times and German broadcaster ARD/WDR reported.
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.
What we must know about the substance the Russian tennis ace was taking before it was banned this year.
Jamaica's twice Olympic 200 metres champion Veronica Campbell-Brown was suspended by her national federation on Tuesday following a positive test for a banned diuretic at a meeting last month.
Pole vaulters Renaud Lavillenie and Jenn Suhr claimed the first gold medals of the World Indoor Championships with record-breaking clearances on Thursday, while IAAF chief Sebastian Coe was reminded that restoring fan trust could take time.
U.S. sprinter Mike Rodgers has accepted a nine-month ban for a failed drug test but will still be able to compete in the London Olympics if he qualifies, the U.S. Anti-Doping Agency (USADA) said on Thursday.
