que es epo?

The 29-year-old, who finished 16th in the Tour behind compatriot Alberto Contador, has been suspended by his team.
"The Saunier Duval team were notified by the International Cycling Union (UCI) that Iban Mayo had tested positive for EPO following a test on July 24 which was a rest day on the Tour de France," read a statement on the team's website.
The statement added that they had decided to suspend him immediately and would sack him if the B sample confirmed the positive test he would be sacked.
If it is confirmed Mayo would be the third rider to have tested positive on the Tour.                                

Eritropoyetina, hormona de síntesis que aumenta la cantidad de glóbulos rojos y mejora el rendimiento muscular. este cilista es ivan mayo que fue pillado