World champion Jorge Lorenzo and Yamaha teammate Ben Spies have been confirmed for Motegi.

Yamaha has confirmed that its factory MotoGP team will be attending the Japanese round of the MotoGP World Championship with regular riders Jorge Lorenzo and Ben Spies.

Despite much concern in recent months over the safety of Japan following the natural disasters that struck the country earlier this year, Yamaha released a statement today confirming their participation.

“Yamaha Factory Racing herewith confirms the attendance of its riders Jorge Lorenzo and Ben Spies to compete for round 15 of the 2011 MotoGP World Championship at Motegi in Japan on 2nd October,” the statement said.

“The Yamaha Factory Racing team will race in Yamaha’s WGP50th Anniversary red and white livery for the fourth time this year at the home GP of team owner Yamaha Motor Co., Ltd.”

The attendance of Australia’s world championship leader Casey Stoner and Ducati’s Valentino Rossi is yet to be confirmed.