Doping

A reader wants to know how much proof is required to convict an athlete on a doping charge.

Contador's defense is not earning him any friends in the Spanish beef industry

Pietrio Caucchioli plans to be the first cyclist to ask the CAS to throw out a suspension based on the UCI's biological passport

Local residents in Alberto Contador’s hometown of El Pinto formed a human chain three kilometers long on Saturday in an act of support for the beleaguered Tour de France champion.

Alberto Contador will not appear at a criterium at the end of this month or in any other event until possible doping allegations have been resolved.

Spain’s Guardia Civil arrested 34 people connected to an alleged trafficking ring involving clenbuterol in the Canary islands

The Italian cycling community is rallying around Franco Pellizotti, who was cleared of doping allegations by the national anti-doping tribunal on Thursday.

Franco Pellizotti has been absolved of doping allegations Thursday by Italian anti-doping authorities in what could be a major setback for the UCI’s biological passport.

A reader wants to know why the UCI is dragging its heels in addressing the doping charges against Tour de France winner Alberto Contador.

There’s a war of words brewing between UCI president Pat McQuaid and Spanish authorities, who are angered over allegations by cycling’s boss that Spain is a haven for doping

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'We have to be completely sure,' says UCI chief Pat McQuaid, speaking at the Tour de France route announcement.

Andy Schleck says he considers Alberto Contador the winner of the 2010 Tour de France adding that he wouldn't want the jersey if the Spaniard loses his doping case.

Rui and Mario both test positive for a banned stimulent, the Portugese cycling federation says.

Lombardia will be Chechu Rubiera's last major race. In retiring, he says the state of Spanish cycling is 'sad and worrying' but he supports Contador.

After he cooperated with investigators, the Italian Olympic Committee has reduced Danilo DiLuca's suspension by nine months

Beleaguered champ Alberto Contador will not attend next week’s Tour de France presentation Tuesday in Paris.

Bjarne Riis, the director of Saxo Bank, says he has a "plan B" in case Alberto Contador receives a racing ban after testing positive for small levels of clenbuterol.

Austrian Stefan Matschiner will serve only a month in jail for attempted blood doping and supply of illegal substances

What appeared to be a well-run, tightly organized and clean Vuelta a España has descended down the all-too familiar path of adjusting the final standings following some high-profile doping cases.

Alberto Contador says he’s not going to take it anymore and has moved to legally challenge media outlets for “absolute lack of veracity.”

Sean Milne will likely be declared 2007 national crit champion after Kirk O'Bee's disqualification. But the late honor will deny Milne the privilege of racing in the stars-and-stripes jersey.

Australian rider Nathan O’Neill was intimately involved in Kirk O’Bee’s purchase and use of doping products, according to a decision handed down by the American Arbitration Association on Wednesday.

An arbitration panel has banned Kirk O'Bee from cycling for life and nullified his results back to 2005, including a 2007 national title.

Bjarne Riis says he has no reason not to believe Alberto Contador on his positive doping explanation, but he concedes the situation is troubling for his new team

Xacobeo-Galicia's David Garcia da Peña has been provisionally suspended by the UCI after testing positive

Spanish cook says a string of bad coincidences led to the growing doping scandal surrounding Tour de France winner Alberto Contador.

Beleaguered Tour de France champion Alberto Contador says he will no longer make public comments until the UCI reaches a decision on pending doping allegations against him.

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The New York Times and The Associated Press report that traces of a plasticizer were found in a sample taken at the Tour, possibly indicating a blood transfusion

UPDATED: A defiant Alberto Contador hints he may leave cycling if he draws a ban and loses his third Tour victory.

UCI chief Pat McQuaid talks about the new "unified" pro calendar for 2011 and the Contador affair.

Speaking at the world championships Saturday, the UCI's Pat McQuaid said it's in cycling's interest to wrap up the case as quickly as possible.

UCI chief Pat McQuaid says the Spanish government and teams need to work harder to catch dopers

Three-time mountain bike world champion Marga Fullana has been provisionally suspended for testing positive for the banned blood booster EPO.

In what’s yet another blow to Spanish cycling, three-time mountain bike world champion Marga Fullana has been provisionally suspended after a positive EPO test

Pierre Bordry says Contador's beef defense is hard to believe

Vuelta a España runner-up Ezequiel Mosquera has denied knowingly taking a banned substance, saying his "conscience is clear", after world cycling's ruling body said he had failed a dope test.

VeloNews European correspondent Andrew Hood reports that most Spaniards support their Tour champion

News of Alberto Contador's positive test for clenbuterol triggered a flood of reader questions.

The brand new world time trial silver medalist, who has his own doping past, says he supports Alberto Contador

Contador's 2011 team taking a wait-and-see position

Ezequiel Mosquera's team manager says the rider was not notified of a positive test result before the UCI announced the results.

Three-time Tour de France winner Alberto Contador, suspended Thursday after failing a dope test, blamed the positive result on contaminated meat, in an emotional protest of his innocence.

Spanish media outlets are reporting that Ezequiel Mosquera, a stage-winner and second overall at the 2010 Vuelta a España, has tested positive.

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Alberto Contador, three-time winner of the Tour de France, has scheduled a news conference on Thursday to address news of an apparent positive test for the bronchodilator clenbuterol.

Floyd Landis has said the physiologist, now with RadioShack, helped him dope.

Pierre Bordry, the often-controversial head of the French anti-doping agency, Agence Française de Lutte contre le Dopage, announced his resignation on Friday.

Stephanie McIlvain, a former close associate of Lance Armstrong, testified before an American grand jury Wednesday

'I am innocent. I feel frustration and rage,' the Spaniard says of doping charges.

U.S. Anti-Doping Agency announced Friday that Jelly Belly pro Jonathan Chodroff has accepted a two-year period of ineligibility for use and possession of EPO when he was a Category 3 amateur.

AG2R suspended Tadej Valjavec earlier this year after doubts about his biological passport, but the Slovenian cycling federation has refused to take any action against him.

Stephanie McIlvain testified in an earlier case that she never heard the seven-time Tour de France champ admit to using performance-enhancing drugs.

The former Rock Racing rider reportedly flunked an in-competition test at the Vuelta a Columbia.

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Doping sanctions against as many as two dozen U.S. riders — pro and amateur — could come out in coming weeks.

The U.S. Anti-Doping Agency announced Friday American cyclist Duane Dickey of Cokato, Minnesota, has accepted a lifetime suspension after a second anti-doping rule violation

The UCI announced Wednesday that Belgian Roy Sentjens (Milram), has been provisionally suspended following a positive test for EPO.

Floyd Landis, former teammate of Lance Armstrong, has filed a federal "whistle-blower" lawsuit, the Wall Street Journal reported on Friday.

Manolo Saiz — the controversial Spanish sports director who was among eight people arrested in the Operación Puerto doping scandal back in 2006 – hopes to be back in the international peloton with a new team.

Increasingly concerned about news leaks and the apparent focus of a federal investigation involving doping, Lance Armstrong has added more muscle to his legal team, that of former White House special counsel Mark Fabiani.

The UCI says it has not closed the files on five riders whose Biological Passport values were deemed suspicious last winter.

The 2008 yellow jersey wearer plans to come back with the Italian squad at the end of the month, when his suspension ends.

Riccardo Riccò, the controversial Italian who tested positive for CERA-EPO during the 2008 Tour de France, has penned a deal to join Quick Step.

Sastre, Kashechkin, Schlecks – sí; Riccò, Rasmussen, Shack – no

Seattle-area Masters cyclist Kenny Williams has accepted an extension of his two-year doping ban because he competed while under suspension

Trek Bicycle Corporation officials told the Milwaukee Journal-Sentinel on Friday that they have provided documents to a federal criminal investigation involving Lance Armstrong.

Former Gerolsteiner manager Hans-Michael Holczer says blood tests showed "clear evidence" that American Levi Leipheimer doped during the 2005 Tour de France.

One rider quietly lining up at the start of last weekend’s Clásica San Sebastián was Andrey Kashechkin.

The China Daily reports that Fuyu Li's second sample has tested positive for a banned substance.

The International Court of Arbitration for Sport has rejected Davide Rebellin's appeal against a doping charge from the 2008 Olympics.

The Explainer looks at laws that prosecutors might be considering when investigating Floyd Landis' allegations against Lance Armstrong and others

Green jersey winner Alessandro Petacchi is not taking questions about recent doping allegations, which are 'too general,' his lawyer says

"At some point, people have to tell their kids that Santa Claus isn't real," Landis says.

Lance Armstrong has confirmed that he has hired one of the country's best criminal defense firms to represent him in an ongoing federal investigation into doping.

Floyd Landis is expected at the Cascade Cycling Classic, starting Tuesday evening. Meanwhile, his former team has either disbanded or reorganized.

The green jersey wearer promises cooperation and his team says it will support him while awaiting further details.

Greg LeMond tells a French newspaper that the investigation into the Landis allegations could bring 'the end' to Lance Armstrong