Julien Absalon becomes the first rider to defend the men 's mountain bike title . 36-year-old German Sabine Spitz claims victory in the women 's mountain bike . - The Tour de France begins with a prologue stage from Paris to Bordeaux and concludes at Le Mans on Sunday, July 21. Australian Matthew Mitcham denies China clean sweep of diving golds .
Julien Absalon becomes the first rider to defend the men 's mountain bike title . 36-year-old German Sabine Spitz claims victory in the women 's mountain bike . China complete a table tennis clean sweep with the gold medal won by Ma Lin . Australian Matthew Mitcham denies China clean sweep of diving golds .