All riders clear medical controls

USAToday.com | Pre-Tour blood tests for 189 riders all negative

Clearly, we'll have a drug-free Tour de France, as every rider cleared their pre-race medical and dope checks.

Barring a last-minute catastrophe, like Matthew White's 2004 crash while warming up for the Prologue, all 189 riders named by their teams should take to the line tomorrow in London.