Raleigh - Tour de France winner Floyd Landis has been charged with a doping offence by the US Anti-Doping Agency (USADA) which he will contest, his attorney said on Friday.

"Landis is confident that the hearing will reveal the truth and he is looking forward to clearing his name in an open and public forum," a statement on his official website said.

Landis has repeatedly denied taking performance-enhancing drugs. He could face a two-year ban from cycling if the charges are upheld and could also be stripped of his Tour de France title.

USADA filed charges against Landis after a review board recommended that the anti-doping agency should move forward in the disciplinary process related to Landis's drugs test of July 20.

"The details of the submission support Landis's long-held innocence and argue that tests conducted on the athlete's 'A' and 'B' urine sample from stage 17 of the Tour de France do not meet the established World Anti-Doping Agency (WADA) criteria for a positive doping offence," Jacobs said last week.

While awaiting a hearing on the charges, Landis will undergo planned hip replacement surgery next week which he hopes will allow him to defend his Tour de France title.

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