( CNN ) -- Defending champion Bradley Wiggins withdraws from the 2013 Tour de France . The British cyclist has failed to recover from an ongoing knee injury . Wiggins was forced to pull out of the Giro d'Italia with a chest infection . Hide Caption 1 of 10 Photos:Photos:
Defending champion Bradley Wiggins withdraws from the 2013 Tour de France . The British cyclist has failed to recover from an ongoing knee injury . Wiggins was forced to pull out of the Giro d'Italia with a chest infection . Hide Caption 1 of 10 Photos:Photos: