Other Cyclists Backing Claims Armstrong Doped Lance 'encouraged' drug use, source tells Times By Mary Papenfuss, Newser User Posted Aug 5, 2010 5:01 AM CDT Updated Aug 5, 2010 7:00 AM CDT 21 comments Comments Lance Armstrong. (AP Photo/Christophe Ena, Fie) (Newser) – Other cyclists are supporting teammate Floyd Landis' claims that Lance Armstrong has systematically used performance enhancing drugs. One rider—who has never tested positive for performance-enhancing drugs—detailed his drug use to investigators, which he said was done with Armstrong's knowledge and encouragement, he told the New York Times. Armstrong was not immediately available to comment to the Times, but he said last month that he would deny involvement in doping "as long as I live." A grand jury in Los Angeles is investigating doping in the sport now. Jeff Novitzky, a special agent for the Food and Drug Administration, is running the investigation.