Disgraced rider steps down as chairman of his anti-cancer charity and Nike breaks all ties

Sponsors stampeded away from endorsement deals with doping-disgraced US cyclist Lance Armstrong, who also stepped down on Wednesday as chairman of the Livestrong anti-cancer charity he founded.

Armstrong was issued a life ban and stripped of seven Tour de France titles in August by the US Anti-Doping Agency (USADA), which last week revealed 1,000 pages of evidence against him, including testimony from 11 former teammates.