Russian marathon star Shobukhova gets two-year doping ban
Russian distance runner Liliya Shobukhova won the Chicago marathon in 2009, 2010 and 2011
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 be backdated to January 24, 2013 and will end on January 23, 2015.
All her results from October 9, 2009, were cancelled, meaning her marathon best of 2hr 18mi 20sec, set in winning in Chicago in 2011, will be wiped from the record books.
Shobukhova won the Chicago marathon in 2009, 2010 and 2011 and the London marathon in 2010.
She holds the European record over 5000m (14min 23.75sec) and 3000m indoors (8min 27.86sec).
Britain's Paula Radcliffe, the marathon world record holder, said on Twitter: "Lilya Shobukhova finally exposed as a drug cheat.
"Fraud on so many levels, so much money effectively stolen in appearance fees, winnings and endorsements."