Former Lance Armstrong teammate Floyd Landis, who has accused the seven-time Tour de France winner of doping while riding for the U.S. Postal Service team, has filed a federal whistle-blower lawsuit, according to The Wall Street Journal.

IOC president Jacques Rogge believes the cricket match-fixing scandal shows that illegal betting has become as big a blight on sports as doping.

Laurent Fignon, a Frenchman who twice won the Tour de France but was defeated by American rival Greg LeMond in arguably the event's greatest race, died Tuesday after a battle with cancer, the French Cycling Federation said. He was 50.

The chief doctor for Lance Armstrong's U.S. Postal Service-backed cycling team when the rider won five of his seven Tour de France victories is dismissing Floyd Landis' doping allegations.

The chief doctor of Lance Armstrong's U.S. Postal Service-backed cycling team when the rider won five of his Tour de France victories has dismissed Floyd Landis' doping allegations.

The president of the International Cycling Union defended his organization Tuesday against accusations it covered up a positive doping test from Lance Armstrong and questioned the motives of a U.S. probe into professional cycling.

Cycling's top official questioned whether the latest investigation into cheating at the highest level of the sport is being driven by new information or old vendettas.

World Anti-Doping Agency director general David Howman thinks a U.S. probe into cheating in professional cycling could take years to complete, and says his group is helping investigators indirectly.

Lance Armstrong has pulled out of the Leadville Trail 100 mountain bike race in Colorado, a high-altitude race he won in record time last year.

Lance Armstrong stands out in a federal investigation of cycling like a guy wearing a yellow jersey.

He's been called high-minded, a trailblazing lawman and "America's top steroid cop."

Lance Armstrong's attorney has lashed out at a report that a former teammate of the seven-time Tour de France champion told investigators Armstrong knew of widespread performance-enhancing drug use on the U.S. Postal Service team.