Italy's Cristian Moreni on Thursday received a two-year ban after flunking a doping test at last summer's Tour de France.
Moreni, 35, tested positive for the male sex hormone testosterone after the 11th stage of the Tour.
He was one of three riders pulled from the 2007 race for doping including race leader Michael Rasmussen of Denmark.
The previous year's winner, Floyd Landis of the United States, was recently stripped of his title and handed a two-year doping ban.
Several riders including favourites Ivan Basso and Jan Ullrich of Germany pulled out on the eve of that year's Tour because of their involvement in a Spanish doping probe.
Basso has since been given a two-year ban while Ullrich has retired.
Cycling's greatest race has been plagued with drug problems since the 1998 'Tour of Shame'.
Italy's Giro d'Italia, the second-biggest stage race, has also had its share of doping woes.
2007 winner Danilo Di Luca was given a three-month ban after this year's race.
Doping's most illustrious, and ultimately tragic, victim was Italy's Marco 'the Pirate' Pantani.
Pantani's career peaked when he won the Tour and the Giro in 1998, emulating legends like Fausto Coppi and Gino Bartoli - only to take a downturn into doping scandals when he was thrown off the 1999 Giro on the eve of winning it again.
After several aborted comebacks that disappointed his legions of fans, he died of a cocaine overdose in 2004.
