Orica-GreenEDGE rider Daryl Impey of South Africa has been omitted from the team's Tour de France lineup after failing a doping test.
American cyclist Christopher Horner has not officially missed a doping test despite being at the center of a whereabouts mix-up on Monday, the United States Anti-Doping Agency said.
Facing a possible life ban, cyclist Danilo Di Luca has been called for questioning next week by the Italian Olympic Committee after failing a surprise check before this year's Giro d'Italia.
Amber Neben is one of the top road cyclists in the world, but there's one title that has always eluded her: an Olympic gold. She's hoping to end that drought in London.
British cyclist Mark Cavendish blames a "genuine" administrative error for missing an out-of-competition drug test in April last year.
The head of cycling's governing body says a positive drug test or two at the Tour de France wouldn't necessarily be a "bad thing" as it would suggest anti-doping efforts are working.
The head of Switzerland's anti-doping laboratory has denied claims that Lance Armstrong had a positive drug test at the 2001 Tour de Suisse which was covered up.
Alberto Contador's lawyers are challenging a World Anti-Doping Agency document that concludes his positive drug test at the Tour de France could not have been caused by tainted meat.
Spanish rider David Garcia has been provisionally suspended by the International Cycling Union after failing a second drug test at the Spanish Vuelta.
Tour de France winner Alberto Contador held a news conference Thursday to address reports of a positive drug test.
Cycling's governing body warned Floyd Landis he could be sued for defamation weeks before he made allegations that it covered up a positive drug test by Lance Armstrong.
Floyd Landis is planning to ride in New Zealand's Tour of Southland cycling race next month.
German rider Olaf Pollack, who won a silver medal at last year's world track cycling championships, has been suspended for failing a drug test.
Tour de France stage winner Mikel Astarloza said he doesn't know how he tested positive for the endurance-booster EPO in a sample taken before the start of the race.
Bradley Wiggins is prepared to release all of his drug-test results from the past 10 years to prove that his impressive fourth-place finish in the Tour de France was not tainted.
Race organizers say Belgian cycling star Tom Boonen will not be welcome at this year's Tour de France after his latest positive drug test.