Drugs scandal 'could ruin Olympic legacy' - Lawrence Clarke

Team GB hurdler Lawrence Clarke believes the Olympic legacy from London 2012 is being put in jeopardy because of the drugs scandal emerging from athletics.

Jamaicans Asafa Powell and Sherone Simpson recently tested positive, as did American Tyson Gay, the fastest man in the world this year.

Speaking to Winter Olympic gold medallist Amy Williams, Clarke says athletics is at risk of losing its credibility because of the recent spate of positive tests.

Clarke, 23, finished fourth in the 110m men's hurdles final in London last summer.