Bradley Wiggins speaks out on Armstrong doping row

Bradley Wiggins has spoken out about cycling's doping crisis, as the route of next year's Tour de France is unveiled.

The ceremony comes just two days after American Lance Armstrong was stripped of his seven Tour victories.

Armstrong has stopped defending himself against claims of systematic doping.

Wiggins said he felt it was "a shame cycling has been dragged through this again".

But he added: "I hope the sport will move forward".