(May 18, 2007)--The Floyd Landis hearing has taken a chaotic twist.

Fellow American Tour de France champion Greg LeMond revealed he had been sexually abused as a child and claimed the Landis camp tried to use it as blackmail to keep LeMond from testifying.

LeMond described receiving a call that he said he later traced to the cell phone of Landis' manager, Will Geoghegan.

Procedural bickering ensued.

As the parties were leaving the room for a break, LeMond confronted Geoghegan, but the two didn't exchange blows.

A three-man arbitration panel hearing the testimony will decide whether to uphold Landis' positive doping test after Stage 17 of last year's Tour de France.

If it does, Landis could face a two-year ban from cycling and become the first person in the 104-year history of the Tour to have his title stripped for a doping offense.

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