Zabriskie said he stopped doping and was clean long before the Anti-Doping Commitment

"I never used drugs and never intended to," he said in his statement. "I questioned, I resisted, but in the end, I felt cornered and succumbed to the pressure."

Zabriskie said he stopped doping and was clean long before theAnti-Doping Commitment was issued for riders in 2007.

"I want to play my part in making it the sport I had always hoped it would be and know that it can be," his testimony said.

Zabriskie did not immediately return phone messages Wednesday.