Yamaha, which has already won the 2010 MotoGP Riders' title with Jorge Lorenzo and Teams' title with Fiat Yamaha, needs only a top-five finish for one of its riders in Sunday's Portuguese Grand Prix to settle the Constructors' championship.

Honda starts Sunday's penultimate round of the championship 39 points from Yamaha, which is on target to win its 13th constructor's title in the premier-class.