Breaking news in the last few moments: Usain Bolt's haul of nine gold medals has diminished after his teammate at the 2008 relay, Nesta Carter, has failed a drugs test. Carter has been found guilty of doping at the 2008 games after the IOC retested frozen samples using, what the AP's Rob Harris describes as "new methods".
Nesta Carter found guilty of doping at 2008 Beijing Olympics after IOC retested frozen samples using new methods last year
— Rob Harris (@RobHarris) January 25, 2017
Carter's samples from the 2008 Olympics were transferred from Beijing to the WADA laboratory in Lausanne, where the IOC decided to conduct a retest of blood and urine samples from the Beijing Olympics. Upon the retesting, the A and B samples tested positive for" the presence of the metabolites of a Prohibited Substance, namely methylhexaneamine", per the IOC's report.
Carter is the sixth fastest 100m runner of all time, and he ran the opening leg of the Olympic final eight years ago as Jamaica stormed to victory in a world-record 37.10 seconds.
The finding means that the full Jamaican 4x100 metre relay team at the 2008 Olympics - Carter, Bolt, Asafa Powell and Michael Frater have been stripped of that gold medal, ruining Bolt's perfect 'treble-treble' medal haul.
More to follow