Bolt's withdrawal does not mean he will miss the Olympics, where he is expected to defend his titles in the 100 and 200.
Marco Aurelio Klein will be replaced by Rogerio Sampaio, a former judoka who won a gold medal in the 1992 Barcelona Games.
NADA officials have no clue about conducting a test on her while the Athletics Federation of India said it has no role in such dope tests.
Phirjinder Singh Brar will travel to the John Lucas Academy in Houston, Texas to train ahead of the NBA Development-League tryouts in August.
Vedika Amin smashed another national record on day 3 of 33rd Glenmark Sub Junior Aquatic Championships.
Rishank Devadiga starred with eight raid points, leading U Mumba to a close 27-25 win over Dabang Delhi KC 27-25.
Haryana's Nirmala Sheoran has qualified for Rio 2016 Olympics in the women's 400 metre category.
Jaipur Pink Panthers came from behind to beat Bengal Warriors 36-33 at the Sawai Mansingh Stadium in Jaipur.
U Mumba beat Dabang Delhi 27-25 in a closely fought contest in Jaipur.
In a special bout, two female boxers of MC Mary Kom foundation will participate in a three round contest.
A member of Russia team was tested positive for the prohibited substance trimetazidine, FISA said in a statement.
Vikas Krishan Yadav secured his Rio spot only last week at an Olympic qualifier in Baku.
The IAAF on Friday said that it had accepted her application as the first athlete to compete.
Michael Phelps and Ryan Lochte cruised to easy wins in their 200 medley semifinals.
Usain Bolt won the quarter final in 10.15 seconds after a series of delays and false starts.
Jaipur Pink Panthers moved up to third place with nine points whereas Bengaluru Bulls jumped to fourth spot with eight points.
Jaipur Pink Panthers tie the match against Bengaluru Bulls at 28-28.
Sally Pearson felt she had not yet reached her peak as an athlete and scoffed at suggestions the tendon tear she suffered.
Lidiya Grigoryeva, a Russian citizen, was also a European bronze medalist in the 10,000 meters in 2006.
At London, which he had declared to be his last Games, Michael Phelps won four gold and overall six medals.
Raider Pardeep Narwal came up with a stellar performance as Patna Pirates beat U Mumba in the Pro Kabaddi League contest.
Michael Phelps topped the 200m butterfly semi-final times, winning his semi in 1min 55.17sec.
Jaipur Pink Panthers are third with six points after two games whereas Telugu Titans remain rooted at the bottom.
Catch the live action between Patna Pirates and U Mumba in Jaipur of Pro Kabaddi League season 4.
Patna Pirates continue their winning form as they beat U Mumba 36-33 in Jaipur.
Catch the live action between Jaipur Pink Panthers and Telugu Titans in Jaipur of Pro Kabaddi League season 4.
Jaipur finally get points under their belt as they beat Telugu Titans for their first win of Pro Kabaddi League.
Sanjeev Singh Sahota, a professional super lightweight boxer from UK, recently turned professional and has played two bouts winning one by knockout.
It was Poojari who came out on top in the first half as she scored four raid points and one tackle point.
Australia's top athlete who won 100 metres hurdles gold at London in 2012, picked up the injury while training on the country's Gold Coast.
Usain Bolt will aim to seal his ticket to Rio as he targets a defence of his 100 metres, 200m and 4x100m crowns.
Benjamin Cohen, who starts work in Lausanne on Nov. 1, is currently head of governance and legal affairs for basketball governing body FIBA.
Sidney Levy was less optimistic about water pollution, saying Rio failed on its promise to clean 80 percent of it by the Olympics.
With Rio staging South America's first Olympic Games from August 5-21, there are worries that the country's inexperience could make it vulnerable.
Dabang Delhi KC and Puneri Paltan produced the first tie of the fourth season of Pro Kabaddi League as the match ended at 27-27 stalemate.
Manjeet Chillar's stunning last-second block steals a thrilling tie for Puneri Paltan against Dabang Delhi.