Cyclist Lance Armstrong was part of "the most sophisticated, professionalized and successful doping program that sport has ever seen," the U.S. Anti-Doping Agency said Wednesday in preparing to release more than 1,000 pages of evidence in the case.

The evidence involving the U.S. Postal Service-sponsored cycling team encompasses "direct documentary evidence including financial payments, e-mails, scientific data and laboratory test results that further prove the use, possession and distribution of performance-enhancing drugs by Lance Armstrong," the agency said.

Armstrong lawyer Tim Herman dismissed what he called a "one-sided hatchet job" and a "government-funded witch hunt" against the seven-time Tour de France winner, who has consistently denied doping accusations.