China is on track to return to the top of the medals table at the Rio de Janeiro Olympics next year ahead of the United States and Russia, according to a benchmark study released by the Australian Olympic Committee on Wednesday.
Russia was the leading doping offender in global sport during 2014, followed by Italy and India, the World Anti-Doping Agency said on Wednesday.
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.
New world 10,000 metres champion Mo Farah brushed the sleep from his eyes and forced his tired legs around 15 laps of the track to qualify for the 5,000 final on a sunny Tuesday morning at the Luzhniki in Moscow.
The International Association of Athletics Federations (IAAF) president Sebastian Coe announced a shake up of the organisation on Wednesday aimed at ensuring there can be no repeat of the corruption scandals that have dogged athletics' governing body during his first, tumultuous, year in office.
Barred from international competition, Russia is training its athletes at a series of special domestic tournaments and banking on hopes a doping ban will be lifted in time for this year's Rio Olympics.
A round-up of all the results from the 17th World Athletic Championships in London
Russia claimed the IAAF's decision to continue its ban of Russian athletics on Friday was unfair and threatened legal action, while the rest of the world welcomed the move and urged the IOC not to go against it.