Valentino Rossi has hinted that he might switch to World Superbikes at the end of his MotoGP career.

The Italian superstar, who is about to start the first year of a two-year contract with Ducati, has previously been linked to F1 or WRC whenever he finally quits grand prix - but now seems to be considering something more familiar.

"In a few years, when I'm older, I could even race in Superbikes with Ducati," Reuters quotes the seven time MotoGP champion as saying.

Rossi has track-tested both Yamaha and Ducati (pictured) Superbikes in the past year, to help gauge his fitness after leg and shoulder injuries.

No rider has yet won both the World Superbike and MotoGP World Championships.

Former WSBK champions Ben Spies and Colin Edwards are the only riders that could potentially achieve that milestone this season.