Formula One champions Red Bull recognised on Saturday they were well behind rivals in pre-season testing but dismissed reports that Sebastian Vettel had "thrown a hissy fit" about the situation.
The former head of world athletics is suspected of receiving just over 1 million euros ($1.09 million) in bribes in 2011 to cover up positive doping tests of Russian athletes, the office of France's financial prosecutor said on Thursday.
Lamine Diack, the former head of world athletics, has been placed under formal investigation in France on suspicion of corruption and money laundering following a complaint from the World Anti-Doping Agency (WADA).
The Russian Athletics Federation (ARAF) said on Monday four athletes had tested positive at the Russian Winter Indoor Athletics Championships in February.
European soccer's governing body, UEFA, launched disciplinary proceedings against the Russian Football Union on Sunday after violence marred the end of Russia's Euro 2016 match against England in Marseille on Saturday evening.
January transfer window failed to materialise as Europe's top clubs largely kept their powder dry.
Dozens of Russian athletes who competed at the 2014 Sochi Winter Olympics, including at least 15 medal winners, were part of a state-run doping program.
Britain's double Olympic champion Mo Farah said on Tuesday he was '100 per cent clean.'
Here is the current state of play among the 28 Olympic sports.
The coach of Brazil's national swimming team says China's Olympic champion Sun Yang tried to elbow and kick a female swimmer.
The lack of bandwidth and content means it will be a long time before online streaming services take off in India.
Formula One's record 22 race calendar for 2014 is 'beyond the limit' for teams but looks likely to be trimmed before it becomes definitive, according to Red Bull team principal Christian Horner.
The reason: Vitaly Mutko has delivered victories on the sports field for the past decade and a half to match Putin's ambition of restoring national pride, and the Russian leader stands by the people who give him loyal service.
Clubbed in a veritable group of death for next year's World Cup, Australia believe they can spring a surprise while fellow Asian qualifiers Japan, South Korea and Iran were more cautious with their optimism despite being dealt kinder draws.
Love him or loathe him, Kevin Pietersen's return from a knee injury in time to face Australia in the Ashes series will have left England supporters breathing a sigh of relief.