These pictures show seven time MotoGP champion Valentino Rossi on a Ducati Desmosedici for the first time.

The Italian made his Ducati debut during the first day of post-season testing at Valencia in Spain on Tuesday.

CLICK HERE for a special picture link showing all of our Rossi pictures from his Ducati debut.

This gallery will be updated throughout the two-day test.

Rossi raced in the premier-class for Honda from 2000-2003, then with Yamaha from 2004-2010.