His potential defrocking furthers a lingering question when it comes to the Tour: Does it really decide the world's best cyclist, or merely who has the world's most crafty chemist?
Remember how this year's Tour de France started -- with several top competitors being forced out of the race after they were implicated in a Spanish doping probe.
A confirming test would undo one of the more enjoyable American stories in recent times: the rise of Landis, a guy who was raised by a conservative Mennonite family in Pennsylvania, hardly the normal breeding ground for an athletic star. Landis eventually left the community to ride mountain bikes in San Diego, then transitioned to road racing.
He rode with Lance Armstrong on the U.S. Postal Service team for a number of years, then left to join Phonak. That team previously had been captained by Tyler Hamilton, who is enduring a two-year ban from the sport for doping (Landis and Hamilton never rode together with Phonak).
So while we await the second test on Landis, we're taking nominations: Are there any clean athletes left? Any athletes who rely on strength, agility, speed or endurance that don't produce at least a flicker of doubt?
If there are, they're invited to step forward. And, just in case, they should bring their clean drug tests with them.