Anti-doping officials say athletes caught in latest police sting had suspicious biological passport results, reinforcing the system's reliability.

The Colombian climber showed suspect blood and urine values, but the UCI has determined there is "no basis to proceed further."

The Colombian climber has now been pulled twice because of questions over his biological passport readings.

Czech rider Roman Kreuziger may not be filing a lawsuit against the UCI or WADA for damages, but that doesn’t mean that his employer won’t

Though he missed much of the 2014 season due to a suspension, Roman Kreuziger will not file lawsuit for damages or legal expenses

On June 10, the Court of Arbitration for Sport will meet to decide the Czech rider’s fate, and the stakes could not be higher

World Anti-Doping Association blasts Stade 2 TV station for airing a program using "human guinea pigs" for bio-passport doping report

Banned for two years stemming from a biological passport violation, Tiernan-Locke vows to return to racing in 2016

Tinkoff-Saxo rider Roman Kreuziger has taken to the internet to declare his innocence and publish several documents from his case

The Czech rider's lawyer releases a statement and presents new evidence after the UCI and WADA press on with case