The U.S. Anti-Doping Agency says it will release Wednesday more than 1,000 pages of evidence detailing the involvement of cyclist Lance Armstrong in what the agency calls "the most sophisticated, professionalized and successful doping program that sport has ever seen."

Armstrong, who won an unprecedented seven Tour de France titles, announced in August that he would no longer fight doping charges that the USADA brought against him earlier in the year. The famed cyclist's decision prompted the USADA to ban the 40-year-old athlete from competition and strip him of his wins dating to 1998, though there were questions of whether the organization had the authority to take such action.

The USADA filed doping charges against Armstrong in June. Armstrong retired from professional cycling in February 2011, though he continued to compete in triathlon events.

The USADA, a quasi-government agency recognized as the official anti-doping agency for Olympic, Pan American and Paralympic sports in the United States, accused Armstrong of using, possessing, trafficking and giving to others performance-enhancing drugs, as well as covering up doping violations.

Armstrong's attorney blasted the accusations as "wrong" and "baseless," much like Armstrong has vehemently denied other such claims in the past.

Armstrong, when he announced in August that he wouldn't fight the charges, said there was "zero physical evidence" to support the USADA's claims, and that he was "finished with this nonsense" of fighting charges after fighting against such allegations for years.

"The only physical evidence there is the hundreds of controls I have passed with flying colors," Armstrong said in August. "I made myself available around the clock and around the world. In-competition. Out of competition. Blood. Urine. Whatever they asked for I provided. What is the point of all this testing if, in the end, USADA will not stand by it?"

On Wednesday, Armstrong's teammate George Hincape admitted he used banned substances.

"It is extremely difficult today to acknowledge that during a part of my career I used banned substances," Hincape said in a statement. "Early in my professional career, it became clear to me that, given the widespread use of performance enhancing drugs by cyclists at the top of the profession, it was not possible to compete at the highest level without them. I deeply regret that choice and sincerely apologize to my family, teammates and fans."

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