Recently-crowned Tour of Portugal champion, Nuno Ribeiro, tested positive for the banned blood booster EPO before the race, the rider said confirmed Friday after being notified by cycling's world ruling body.
Ribeiro also won the race in 2003 but his recent victory is now under a cloud after the results from doping control prior to the race, on August 6, were officially released Friday.
The 32-year-old's Liberty Seguros team announced Friday that two other riders with the team, Spaniards Hector Guerra and Isidro Nozal, had also tested positive for EPO.