In Rome on Sunday, Froome joined Hinault and Merckx in winning all three Grand Tours consecutively, having won last year’s Tour de France and Vuelta a España.
"Froome does not belong on that list," Hinault said, according to Belgian publication Het Laatste Nieuws. "He returned a positive test at the Vuelta and afterwards his B-sample proved positive, so he has used doping and he has to be suspended.
"He should never have been allowed to start in the Giro. Why do we have to wait so long for a verdict? Those two Italians who had the same thing [Alessandro Petacchi and Diego Ulissi -ed.] were suspended much faster. With what right does Froome get so much time to find an explanation? Is it because Sky has so much money?"
Froome is currently under investigation after an anti-doping test during the 2017 Vuelta a España, which he went on to win, showed him to have double the permitted levels of the asthma drug salbutamol in his urine.