Chijindu Ujah has been provisionally suspended since Ostarine and S-23 -- both substances prohibited by world anti-doping organisation WADA -- were detected in his A and B samples following the final.
Richardson was banned last year for a month for testing positive for cannabis
The International Tennis Federation (ITF) has expressed its disappointment at the Court of Arbitration for Sport (CAS) decision to clear French player Richard Gasquet of doping after he tested positive for cocaine.
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.
"The athlete has challenged the imposition of the provisional suspension and the case has been referred to the Court of Arbitration for Sport - Anti-Doping Division," the ITA said.
Russian whistleblower Yulia Stepanova will not appeal to the Court of Arbitration for Sport over her ban on running as an independent athlete at the Rio Olympics, she said on Friday.
Semenya has vowed to fight the regulations, but has already lost an appeal to the Court of Arbitration for Sport, and another subsequent plea to the Swiss Federal Tribunal (SFT) asking for the CAS ruling to be set aside.
WADA on Friday was thrust into the spotlight at the Beijing Olympics Kamila Valieva tested positive
Real Madrid have won a small victory in their dispute with FIFA over the illegal signing of under-age foreigners after the Court of Arbitration for Sport (CAS) temporarily lifted its ban on appeal.
Antonio Watson won a thrilling World Championship 400 metres gold on Thursday.
In the full decision posted on CAS's website and made public on Wednesday, CAS said Sun Yang had sought to shift blame to testers and his entourage and taken no responsibility for his actions.
Summary of sports events and persons who made news on Friday
A summary of sports events and persons who made news on Friday
Russian athletes will file a class action suit against a ban imposed by the International Association of Athletics Federations.
Coach Eteri Tutberidze said she was certain Valieva was 'clean and innocent'
Kamila Valieva failed a drug test for a banned substance before the Games.
Russian Sergey Kirdyapkin will be stripped of the 50km walk gold medal he won at the 2012 London Olympics.
Valieva failed the test collected at the Russian national championships on Dec. 25
Russian Sport Minister Vitaly Mutko said a decision by the International Weightlifting Federation to ban Russia weightlifters from the Rio Olympics was like "a psychotic episode", R-Sport news agency reported on Thursday.
A summary of sports events and persons who made news on Monday
More than 100 Russian Paralympians have individually filed cases to the International Paralympic Committee (IPC) in order to be allowed to compete at next month's Games in Rio, Russian Paralympic Committee (RPC) Vice President Pavel Rozhkov said on Tuesday. The Court of Arbitration for Sport (CAS) last week rejected an RPC appeal against the suspension which was handed out by the IPC because of Russia's state-sponsored sports doping programme.
Esther Staubli is set to become the first female referee to officiate a match at the ongoing FIFA Under-17 World Cup 2017.
Pakistan batsman Umar Akmal on Saturday claimed that he did not report to Pakistan Cricket Board about the spot-fixing approach made to him which led to his ban last year as he thought the information would not remain confidential.
UEFA's FFP rules face likely changes in the wake of the CAS ruling and Mourinho said the system needs to be overhauled if it is to continue to serve its purpose which is to aim to stop clubs running big losses through spending on players.
Russia's disabled athletes will not be allowed to compete as neutrals at this month's Rio de Janeiro Paralympics after their country was banned because of a state-sponsored sports doping programme. The International Paralympic Committee (IPC) said in a statement on Thursday it had rejected more than 175 Russian athletes who filed individual cases to try to take part in the Brazil event. "The International Paralympic Committee ... will not allow individual Russian athletes to participate as neutral athletes at the Rio Games", the organisation said on its website (www.paralympic.org).
CAS orders FIFA not to extend his 90-day provisional suspension but will not be allowed to attend the Euro 2016 draw
The International Association of Athletics Federations (IAAF) chief Sebastian Coe empathises with the plight of Indian sprinter Dutee Chand, whose career has been hit by the controversial 'gender testing' issue, but insists it needs to create a "level-playing field" for all athletes.
The Centre told the Delhi High Court that it has written to the International Boxing Association (AIBA) requesting it to revoke the provisional suspension of boxer Laisram Sarita Devi for refusing to accept the bronze medal at the Asian Games in South Korea.
Summary of sports events and persons who made news on Wednesday
Gomathi Marimuthu approaches CAS, appeals against doping ban
Russian teenage figure skater Kamila Valieva tumbled to fourth place in the women's singles event on Thursday, yielding to the pressure of a doping controversy that has rocked the Beijing Games.
Romanian weightlifter Gabriel Sincraian and Russian boxer Misha Aloian have been stripped of their 2016 Olympic medals after failing doping tests at the Games, the Court of Arbitration for Sport said.
Indian athlete Dutee Chand has been cleared to participate in next year's National Games.
Luis Suarez trained with his new Barcelona team mates for the first time on Friday.
A summary of sports events and sports persons, who made news on Tuesday.
Dhankhar, who took to cricket in his school days and also had keen interest in spirituality and meditation, began his political journey with the Janata Dal and won the Lok Sabha elections in 1989.
A summary of sports events and persons who made news on Saturday
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.
Indian athletics' biggest doping scandal involving six top women runners, including three Asian and Commonwealth Games gold medallists, ended with the Switzerland-based Court of Arbitration for Sports handing them an enhanced ban of two years.
The Indian Olympic Association has set up an Ethics Commission comprising three former Supreme Court and High Court judges to look into matters related to 'ethical principles of the Olympic movement'.
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