From Bicycling Magazine, May 2011 (www.bicycling.com), produced by Charlie Layton (www.charlielayton.com) Quote from Cycling Tips: The thing to note from this diagram is that the riders in black: Admitted to doping or were banned or suspended by a sanctioning group for doping; Suspended or fired by their teams or individually withdrew from races for some connection to doping; Were convicted of doping or paid a fine to settle charges related to it. Riders in black did not necessarily test positive in that particular Tour de France.

From Bicycling Magazine, May 2011 (www.bicycling.com), produced by Charlie Layton (www.charlielayton.com)

Quote from Cycling Tips:

The thing to note from this diagram is that the riders in black: Admitted to doping or were banned or suspended by a sanctioning group for doping; Suspended or fired by their teams or individually withdrew from races for some connection to doping; Were convicted of doping or paid a fine to settle charges related to it. Riders in black did not necessarily test positive in that particular Tour de France.