Russian marathon runner Liliya Shobukhova has been handed a two-year ban for doping, the Russian Athletics Federation confirmed.
Shobukhova's results from October 2009 onwards will also be annulled, meaning she will be stripped of the World Marathon Majors titles she has won.
The Russian won the London Marathon in 2010, as well as three consecutive Chicago triumphs between 2009-11, but they will all now be taken from her, pending any appeal which may follow, reports Athletics Weekly.
The ban was announced by the federation Tuesday, following abnormalities found in her biological passport. It will be backdated to January 2013 and so will run until January 23, 2015.
The 36-year-old is the second fastest female marathon runner of all time, behind only Britain's Paula Radcliffe, although as the time was set in 2011, that will also be annulled. And Radcliffe was quick to take to Twitter to have her say on the news: "Liliya Shobukhova finally exposed as a drugs cheat," she wrote.
"WMMajors: action needs to be taken to show cheating not acceptable. Monies won should be returned and rightful winners recognised."
The World Marathon Majors then released a statement confirming any athlete who is found guilty of taking drugs must repay all prize money won during the period in question.
NIck Bitel, General Counsel of WMM, added: "Cheats need to understand that they are not welcome in our sport and that they will be caught."
Shobukhova had originally started her career as a middle distance runner, winning medals in the 3000m at the 2006 World Indoor Championships, and in the 5000m at the European Championships later that year. She then made the switch to road running in 2007.
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