Porte crashed heavily on the final descent of stage nine into Chambéry, a nasty-looking incident which saw him taken away in an ambulance. Dan Martin also came down in the same crash, fracturing two vertebrae but carrying on to finish sixth in Paris.
Writing on Instagram, Porte said “Heading out on the road for first time since my crash, feels like first day back at school. So excited!”
Although back training, it looks unlikely that the Australian rider will return to racing this season, but he is already being tipped to make a strong recovery and is one of the early favourites for the 2018 Tour de France.
With Porte out, BMC Racing will head to the Vuelta a España, which starts on Saturday, with Damiano Caruso likely to be their main general classification contender.