Rossi tests with Ferrari

Moto GP world champion Valentino Rossi has sparked speculation he could swap two wheels for four after spending two days testing with Ferrari at Fiorano.

The 26-year-old Italian, who renewed his contract with Yamaha this week, has always played down suggestions he could follow in the footsteps of John Surtees, the only man to have been both a Formula One and a motorcycle world champion.