Ricco's team withdraws after positive test

The Saunier Duval-Scott team have voluntarily withdrawn from the Tour de France in the wake of the positive drug test returned by their star climber Riccardo Ricco.

Ricco, the current wearer of the polka dot jersey, produced a positive A sample for the blood-booster EPO in a test undertaken after the fourth stage of the Tour, the Cholet time-trial on July 8.