South Africa's Caster Semenya heads the field in Women’s 1500m
When Kawauchi ploughed across the finish line on Monday, despite the coldest start in 30 years and steady rain, he became the first Japanese runner to win the race since 1987.
David Rene Roger Bellet-Brissaud, 48, who lives in Gabon, was seen on camera footage leaving the hotel in Port Elizabeth on Friday.
Blake, who picked up a world title in 2011 after Bolt false-started, could only finish third behind Simbine's countryman Henricho Bruintjies after a calamitous start.
WADA confirmed on Wednesday that it had conducted "an investigation into the activities of the IBU" and had contacted police in Norway and Austria as well as Interpol.
Mutaz will be joined by a host of Olympic and world champions for an unmissable evening of world-class athletics at the Qatar Sports Club.
Blake clocked 10.06sec to qualify quickest and he did it with ease, looking across twice at a fast-closing Adam Gemili of England in his semifinal on Sunday.
Coe said there was no shortage of athletics talent for the Games, the first major competition since Bolt's retirement last year left the sport with a void to fill.
Moscow has failed to provide evidence it was adequately testing Russian competitors, says the athletics governing body
Bannister gained global sporting glory on May 6, 1954, when he ran a mile (1.6 kilometres) in three minutes 59.4 seconds at the Iffley Road track in Oxford.
Czech Pavel Maslak eventually became the first athlete to win three consecutive world indoor titles as controversy again struck the 400m
The 21-year-old American arrived in Birmingham, England, fresh from having set a new world indoor record in the 60m
Britain's Katarina Johnson-Thompson racked up 4,750 points to win the pentathlon
The third heat of the event saw all runners, including favourite Bralon Taplin, disqualified for lane infringements
Danil Lysenko took revenge for the defeat at last year’s London World Championships after a thrilling battle