CAS upholds first suspension based on blood profiling

It's all about blood. Increasing the ability of the blood to deliver oxygen to the muscles is a potent performance-enhancer. Athletes are prepared to go to tremendous lengths to beat the tests.

It's all about blood. Increasing the ability of the blood to deliver oxygen to the muscles is a potent performance-enhancer. Athletes are prepared to go to tremendous lengths to beat the tests.

The Court of Arbitration for Sport (CAS) has ruled for the first time on the suspension of an athlete based on irregular blood values alone, and said that manipulation was the only explanation for such blood values in the case. The CAS on Wednesday upheld the two-year suspension of German speed skater Claudia Pechstein, who never returned a positive doping control.