Cyclist Lance Armstrong will not cooperate with the U.S. Anti-Doping Agency's investigation of performance-enhancing drug use in the sport, an Armstrong attorney said Wednesday.

USADA had given Armstrong -- who publicly admitted such drug use last month -- until Wednesday to decide whether he would cooperate under oath with investigators as part of a possible path to altering his USADA-imposed lifetime competition ban.

"Lance will not participate in USADA's efforts to selectively conduct American prosecutions that only demonize selected individuals while failing to address the 95% of the sport over which USADA has no jurisdiction," Armstrong attorney Tim Herman said in a written statement Wednesday.