U.S. Anti-Doping Agency

USADA chief rejects Armstrong 'witch-hunt' claim

The U.S. anti-doping chief Feb. 11 dismissed accusations of a ?witch hunt? against Lance Armstrong and said he was delighted with reforms aimed at cleaning up cycling.

Travis Tygart, chief executive of the U.S. Anti-Doping Agency (USADA), hit back at comments from former International Cycling Union (UCI) president Pat McQuaid.