'10% of athletes could be doping', says WADA boss

World Anti-Doping Agency director general David Howman says one in 10 sportspeople may be doping, but says cycling is cleaning up its act

World Anti-Doping Agency chief David Howman has said that over 10 per cent of athletes could be using banned performance-enhancing substances, although he praised the efforts made by professional cycling as it has undergone a major shift away from doping in recent years.

Speaking to the BBC's HardTalk programme, WADA director general Howman said the number of sportspeople engaging in doping practices could be "far more than we would wish it to be - over 10 per cent. That is of concern because those being caught by the system is far lower than that. Not in all sports, in some sports."

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