Lance Armstrong will admit to doping in his upcoming interview with Oprah Winfrey, multiple sources are reporting. Armstrong, who has been stripped of his seven Tour de France titles after the U.S. Anti-Doping Agency brought forth a case in October that included evidence of cheating, has agreed to a "no-holds-barred" interview with Winfrey, who will broadcast the event Thursday on her Oprah Winfrey Network as well as streaming at oprah.com.