Lance Armstrong confessed to using an array of banned substances in his seven Tour de France triumphs from 1999 to 2005, but denied using drugs in his comeback in 2009.
Armstrong, stripped of all his cycling achievements from August of 1998, told US talk show host Oprah Winfrey that he was angered by the US Anti-Doping Agency's charge that he continued to dope when he returned to pro cycling and raced in the Tour de France in 2009 and 2010.
In the highly anticipated interview - that airs on Top TV and DSTV from 6-30 tonight - Armstrong described himself as a flawed character and that he viewed the situation as one big lie that he had repeated a lot of times.
