AUSTIN, Texas (AP) -- Lance Armstrong says he's considering all his options after new doping allegations have been raised against him.

The accusations of performance-enhancing drug use levied by the U.S. Anti-Doping Agency prevent Armstrong from competing in a triathlon in France this month. In a phone interview from Paris, Armstrong told The Associated Press he's leaving France to return to the United States.

Armstrong has until June 22 to file a written response to the charges. He's waiting to see USADA's evidence and questioned its tactics.

Says Armstrong: "They are well known to move the goal line on you." He says he's innocent.

USADA says it has more than 10 former Armstrong teammates and support personnel who will testify they saw the Tour de France champion use drugs or talk about using them.

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