CASTELSARRASIN, France (AP) _ Daniele Bennati of Italy won the 17th stage of the Tour de France and Alberto Contador of Spain became the new overall leader Thursday, a day after Michael Rasmussen was sent home for lying to his team in another devastating jolt to cycling's premier event.

Bennati won a sprint at the end of the 188.5-kilometre trek from Pau to Castelsarrasin, as the doping-marred Tour staggered north toward its finish Sunday in Paris.

Bennati, riding for the Lampre Fondital team, won a Tour stage for the first time. He led a small breakaway group and finished in four hours 14 minutes four seconds. Markus Fothen of Germany was second and Martin Elmiger of Switzerland was third.

Contador earned the leader's yellow jersey. He had been second overall to Rasmussen after Wednesday's last ride in the Pyrenees, when the Dane's Rabobank team took him out of the race.

``I would have liked to take it on Wednesday,'' said Contador, who finished second to Rasmussen in that stage, up the Col d'Aubisque. ``But these are particular circumstances, and that's just the way it is.''

The last time there was no yellow jersey was when leader Rolf Sorensen crashed and was too injured to continue in 1991, according to the Tour's website.

Contador, a 24-year-old Discovery Channel rider, leads by one minute 53 seconds over Cadel Evans of Australia in second. His Discovery teammate, Levi Leipheimer of the United States, is third, 2:49 back.

Rasmussen was ousted by his team for lying about his whereabouts during pre-race training, the third blow this week to the venerable 104-year-old Tour. In recent days, two riders _ including star Alexandre Vinokourov _ were thrown out because of positive drug tests.

Some French newspapers declared the Tour dead on Thursday and said it should be stopped after the bombshell announcement late on Wednesday night that Rasmussen's team was sending the Dane home.

Team spokesman Jacob Bergsma said Rasmussen's withdrawal was ordered by sponsor Rabobank. It was linked to ``incorrect'' information that Rasmussen gave to the team's sports director over his whereabouts last month. Rasmussen missed random drug tests on May 8 and June 28, saying he was in Mexico. But a former rider, Davide Cassani, said he had seen Rasmussen in Italy in mid-June.

Tour director Christian Prudhomme on Thursday described the withdrawal of Rasmussen as ``the best news of the week.''

Rasmussen had been the leader since July 15.

``My career is ruined,'' Rasmussen told Dutch newspaper Algemeen Dagblad. ``I have no idea what I should do or where I will go. This is an enormous blow for me, and also for all the guys from the Rabo team. They're devastated.''

Contador said he had not missed any doping tests.

``I am clean. If I weren't, I wouldn't be here,'' he said Thursday.