Marathon star Shobukhova banned for two years
Russian distance runner Liliya Shobukhova won the Chicago marathon in 2009, 2010 and 2010
The 36-year-old was banned based on abnormalities in the haematological profile of her biological passport, which indicates a high probability of blood doping.
The ban will start on January 24, 2013. All her results from October 9, 2009, were cancelled.
Shobukhova won the Chicago marathon in 2009, 2010 and 2010 and the London marathon in 2010.
She holds the European record over 5000m (14min 23.75sec) and 3000m indoors (8min 27.86sec).