Australia's Casey Stoner sealed the MotoGP world title yesterday with victory at the Australian Grand Prix as his closest rival Jorge Lorenzo pulled out with a sickening finger injury.

On fire: Honda's Casey Stoner celebrates after winning the Australian
Grand Prix  yesterday. Pic/AFP

The Honda rider's fifth consecutive win at Phillip Island was enough to clinch his second career championship with two races to spare after defending title-holder Lorenzo, his closest challenger, crashed during the warm-up.

Stoner powered away from pole position in a wire-to-wire win as he celebrated his 26th birthday in style.

Mahindra shine
Mahindra Racing's riders, Danny Webb and Marcel Schrotter, finished 10th and 11th respectively, to record the debutant team's best ever double points result of the season in the 125cc category.