Lance Armstrong's lawyer has confirmed that the cyclist has again refused to be interviewed under oath while being questioned by United States Anti-Doping Agency officials.
Two weeks ago, the 41-year-old American declined the chance to reveal all to the governing body about how he used performing-enhancing drugs during his professional career.
Co-operation could have seen a reduction in Armstrong's lifetime ban from the sport.
However, he has again rejected the opportunity to work with USADA due to what lawyer Tim Herman describes as "several reasons".
"Lance is willing to cooperate fully and has been very clear. He will be the first man through the door, and once inside will answer every question, at an international tribunal formed to comprehensively address pro cycling, an almost exclusively European sport," Herman said in a statement.
"We remain hopeful that an international effort will be mounted, and we will do everything we can to facilitate that result. In the meantime, for several reasons, 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, who recently admitted to using drugs in a televised interview with Oprah Winfrey, was accused by USADA in October of running "the most sophisticated, professionalised and successful doping programme the sport has ever seen".