Injured Rudisha out of worlds
London, UK - Kenya's David Rudisha's hopes of adding world 800m gold to the Olympic title he won in a world record time at the same track in the 2012 London Olympics have been dashed because of injury.
The 28 year old - who ran an astonishing time of one minute 40.91 seconds to take gold in 2012 - took to Twitter to reveal he could not take his place in the London Stadium for the championships.
"It's sad and disappointing to announce my no show in the forthcoming #london2017 WC due to a quad muscle strain," tweeted Rudisha, who was the defending champion.
The absence of the two-time Olympic champion - whose run in 2012 was acclaimed as the standout performance of the Games by London 2012 chairman and athletics great Sebastian Coe - could pave the way for compatriot Emmanuel Korir or the man who chased him home in London in 2012, Nijel Amos of Botswana. The championships get underway on Friday.
IAAF upholds Russia ban
Russia remains banned from international track and field competition after the IAAF ruled on Monday that it had not made sufficient progress in its anti-doping fight to merit reinstatement.
Russia was accused in a World Anti-Doping Agency (WADA) report last year of widespread state-sponsored doping. Its athletics team was barred from last summer's Rio Olympics and will also miss the IAAF World Championships.
A number of Russian athletes, however, have been granted permission by the IAAF to compete as neutrals after meeting the exceptional eligibility criteria, essentially demonstrating that they've come through transparent anti-doping testing.
IAAF president Sebastian Coe confirmed that 19 Russian athletes were in London to compete at the worlds.
But the country remains excluded as a whole after the Council of the International Association of Athletics Federations (IAAF), meeting in London, voted unanimously to maintain the ban on the Russian Athletics Federation (RusAF).