Five-times Tour de France winner Bernard Hinault has called for riders to strike if defending champion Chris Froome, who is under investigation over an adverse doping test, takes part in this year's race.
Froome tested positive for excessive levels of the asthma drug Salbutamol following a urine sample at last year's Vuelta a Espana.
The 33-year-old has denied any wrongdoing and is confident that he will be cleared after the investigation by the sport's governing body Union Cycliste Internationale (UCI).
"Christopher Froome should not be at the start of the Tour," Hinault was quoted as saying by British media.
"The peloton should put its feet to the ground and say, if he is starting the race, we won't start.
"Quite simply because he has tested positive, for me this is not an abnormal test. The people at the UCI should have said, you have been caught, so you should not be racing."
Hinaulte has said that Froome should not have been allowed to compete at the Giro d'Italia and that the Briton cannot be listed among the sport's greats.
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