Dr Bonar whistleblower says doping is 'endemic' in cycling

Blood samples in doping control

Blood samples in doping control

Dan Stevens, the whistleblower at the centre of the Sunday Times' investigation into the practices of Dr Mark Bonar, has warned that doping is an "endemic" problem in cycling, that other doctors like Bonar are operating, and that doping may have become far more sophisticated in the upper echelons of the sport.

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Patrick Fletcher

Patrick is an NCTJ-trained journalist, and former deputy editor of Cyclingnews, who has seven years’ experience covering professional cycling. He has a modern languages degree from Durham University and has been able to put it to some use in what is a multi-lingual sport, with a particular focus on French and Spanish-speaking riders. Away from cycling, Patrick spends most of his time playing or watching other forms of sport - football, tennis, trail running, darts, to name a few, but he draws the line at rugby.