Despite the doping case against Ullrich, he has not been officially removed from the results yet.

Typically, the organization takes action in doping cases only when guilt has been proved, he said.

Cross-country skiing has had doping cases involving high hemoglobin levels in the past.

In 2007, Saidy became the subject of a doping case.

Hears the final appeal by athletes in doping cases.

After all, none of the doping cases in this Olympics involved a Chinese athlete.

One of the most prominent doping cases in sports history is coming down to a crank call, a black suit and a beer or two.

The phone call may not seem relevant to a doping case.

In 2004 the club was rocked by a doping case.

A doping case came to light at the end of the 2008 edition in which ten competitors were checked.