Italian police arrested four alleged drug dealers suspected of supplying cocaine to Italian cycling great Marco Pantani, who died in February.
The former Tour de France winner's body was found in a hotel room in Rimini.
Vincenzo Nibali became the first Italian to win the Tour de France since the late Marco Pantani on Sunday, dominating his rivals on all terrains as his main rivals crashed out of a superb three-week race.
Tour de France winners since the event was first staged in 1903.
The top two in the 1998 Tour de France - Italian Marco Pantani and Germany's Jan Ullrich - were taking the banned blood booster EPO, a French Senate inquiry into sports doping said on Wednesday.
Geraint Thomas tightened Team Sky's grip on the Tour de France when he handed the British outfit their sixth title in seven years on Sunday and there is no sign that their domination will end anytime soon.
'I am a private person but over time I have figured there are certain things people want to see, which people want to know.'
Alberto Contador will cement his status as the best grand tour rider of the modern era if he emerges as the winner of the Big Four's battle royale at the Tour de France -- the most highly anticipated race in decades.
A successful Olympic track cyclist, O'Grady won a madison gold at the 2004 Athens Games, following a team pursuit silver at the 1992 Barcelona Games and a pair of bronzes at Atlanta in 1996.
Check out the main contenders for this year's Tour de France, which starts on Saturday in Utrecht, Netherlands.