Russia’s Natalya Antyukh has been stripped of 400m hurdles gold from London 2012 on the basis of historical data from a Moscow testing laboratory.
Antyukh, now 41, is already serving a four-year ban after being named in a World Anti-Doping Agency (Wada) investigation into cheating by Russia.
American Lashinda Demus will be promoted to gold in her place.
All three gold medals won