File photo of Seven-time Tour de France winner Lance Armstrong during stage five of the Amgen Tour of California

 
File photo of Seven-time Tour de France winner Lance Armstrong during stage five of the Amgen Tour of California
Seven-time Tour de France winner Team Radioshack rider Lance Armstrong waits at the starting line in Visalia, California of stage five of the Amgen Tour of California in a May 20, 2010 file photo. Sunglasses maker Oakley has become the latest sponsor to drop Armstrong over a doping scandal that has seen him stripped of his seven Tour de France titles. REUTERS/Anthony Bolante/files