A tired Usain Bolt and an emotionally fatigued Justin Gatlin progressed towards their second blockbuster sprint showdown of the World Athletics Championships by easing through the 200 metres heats in Beijing, on Tuesday.
Former international athletics federation (IAAF) president Lamine Diack has told French police that he asked a Russian athletics boss for 1.5 million euros to finance political opposition in his native Senegal in 2011, the French daily Le Monde reported on Friday.
The levels of doping in sport are now worse than ever. Following are the main doping stories in sport in the first quarter of 2013:
Isinbayeva was under pressure to quit as head of RUSADA's supervisory council after the World Anti-Doping Agency (WADA) called for her removal, one of four steps it said were necessary for RUSADA to retrieve its right to oversee the testing of Russian athletes.
Long jumper Darya Klishina, the only Russian athlete cleared to compete in this summer's Olympic Games in Rio, says she does not feel a traitor.
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 World Anti-Doping Agency is not fit for purpose and should be replaced, Britain's double Olympic decathlon champion Daley Thompson has said following its decision last month to lift a ban on Russia's anti-doping body.
Caster Semenya, the 800 metres world champion, will not return to competitive athletics until her gender verification case has been resolved, Athletics South Africa (ASA) announced on Tuesday.
The WADA report also identified "systematic failures" at the IAAF, athletics' world governing body, which has been rocked by a French judicial investigation into fraud involving its former chief Lamine Diack and other senior officials.
A summary of sports events and sports persons, who made news on Tuesday.
Bulgarian triple jumper Gabriela Petrova had her doping suspension lifted by the IAAF on Monday, less than a week after the World Anti-Doping Agency (WADA) announced an amnesty for athletes who had tested positive for meldonium before March 1.
Former 100 metres world record holder Asafa Powell was banned for 18 months by a Jamaican anti-doping disciplinary panel on Thursday after he tested positive for a banned substance last year.
This year Olympic Games could feature an athletics programme without two of the sport's most powerful nations -- Russia and Kenya -- while a third, Ethiopia, is under immense pressure to show it has adequate anti-doping measures.
Double Olympic champion Caster Semenya could trade her running shoes for soccer boots as early as next year after the 28-year-old signed for South African women's club JVW FC.
'We keep climbing one step and slipping three. In 2004, our relay team was 7th in the world. Then we slipped from there. Otherwise, today our 4x400 metres relay team would have been gearing for a medal at the Rio Games.' 'If we need to compete at the world level, our thinking needs to be at world level. You can't have akhada thinking.'
The World Anti-Doping Agency (WADA) said on Wednesday it was 'extremely troubled' by reports claiming banned Kenyan athletes were asked for money to reduce their doping suspensions.
Maria Lasitskene became the first Russian to win a gold medal at the World Championships in London after successfully defending her high jump title on Saturday.
A summary of sports events and persons who made news on Friday.
Star sprinter Hima Das is not losing her sleep over qualifying for the Olympics, having included cycling and a bit of cricket in her "medium-intensity" training regime while taking care to avoid the sweltering summer heat in Patiala.
World 800 metres champion Caster Semenya plans to compete this season even though the International Association of Athletics Federations (IAAF) has yet to resolve her gender verification case.
Summary of sports events and persons who made news on Wednesday
A summary of sports events and persons who made news on Monday
India's star javelin thrower Neeraj Chopra comfortably won the gold at the Sotteville Athletics meet in France, beating a competitive field which included 2012 London Olympics gold-medallist Keshorn Walcott.
Boxing will no longer be part of the World Combat Games and the international federation is also leaving the SportAccord umbrella organisation.
A summary of sports events and persons who made news on Thursday
"So it's all about how I feel after Rio, if I feel I can really put my body through one more season. If I'm going to be focused and I'm going to be determined. That will determine if I compete after Rio. So we'll see how it goes."
Several athletes who competed in the world championships in August have tested positive for the new designer steroid THG.
Summary of sports events and persons who made news on Thursday
A summary of sports events and persons who made news on Tuesday
Double Olympic champion Caster Semenya's future was in doubt on Friday after she said she would not take medication to lower her testosterone levels to comply with new rules for the 800 metres.
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.
Hima Das shattered the 400m national record for a second time in two days for a silver while Dutee Chand grabbed the second place in 100m dash on another good day for India's track and field athletes at the Asian Games.
Top seed Sameer, who won the Swiss Open earlier this year, had to dig deep into his reservoir to outwit compatriot Pratul Joshi 16-21, 26-24, 21-7 in 55 minutes. In another quarter-final, Gurusaidutt, a former Commonwealth Games bronze medallist, recovered from a game down to beat Malaysia's Lim Chi Wing 13-21, 22-20, 21-11 in 59 minutes.
Caster Semenya is seen as a near-certainty for Olympic gold on the track in Rio and her expected success in the 800 metres looks just as sure to bring up further examination of her running credentials.
The 32-year-old Queenslander, who won Olympic 100 metres hurdles gold at the 2012 London Games and the world title in 2011 and 2017, said she had been forced into the decision by a string of injuries.
Summary of sports events and persons who made news on Saturday
A summary of sports events and persons who made news on Wednesday
The IAAF will send a warning to the American sprinter for disrupting this year's World championships but will take no further action.
A summary of sports events and persons who made news on Monday
India's fastest woman Dutee Chand is facing a tough battle of acceptance in her family.