Count Basso among my rivals - Contador

Reigning Tour de France champion Alberto Contador will count Ivan Basso among his biggest challengers this year after the Italian's impressive victory in the Giro d'Italia.

Basso finally exorcised the ghosts of a career-threatening doping ban last month when he captured his second pink jersey from the Giro to put himself back among cycling's stage racing elite.

The Italian then admitted, however, that his redemption would not be fully complete until he competes at the Tour de France, from which he was ejected before the start in 2006 due to suspected doping.

Although Basso's exertions in what was a demanding three-week Giro could hinder his hopes of really challenging in the Tour, Contador said he would not rule the Italian out.

And the Spaniard, who made history in 2008 when he added the Giro d'Italia and Tour of Spain titles to his 2007 Tour de France yellow jersey, hinted he was considering attempting the rare double of the Giro/Tour in 2011.

"For me Basso is a great champion who has real qualities as a cyclist - whether he'd won the Giro or not," the Spaniard said.

"I certainly won't be ruling him out of being among my big challengers this year."

Another of Contador's big rivals at the Tour will be Lance Armstrong, who finished third last year at over five minutes behind the Spaniard.

Armstrong, who only returned to the sport last year following a three-year hiatus, has endured several mishaps this season - principally a crash in the Tour of California.

Only days after Armstrong faced down damaging allegations of doping from former team-mate Floyd Landis, his team manager at RadioShack Johan Bruyneel admitted the 38-year-old Texan was struggling for form.

However Contador believes Armstrong will be ready when it comes to the race in July.

"I've been following the progress of all my rivals, but come the Tour de France I'm sure Lance will be ready," said Contador.

"He has a lot of experience, and above all he knows himself very well and how to find the kind of condition that is needed to be competitive at the Tour."