Factory Yamaha MotoGP rider Jorge Lorenzo will miss the Malaysian MotoGP round at Sepang after undergoing surgery to fix the finger he damaged in morning warm-up at Phillip Island today.

The former world champion, who lost his crown to Casey Stoner as a result of not being able to race today, crashed and lost the tip of his finger and mechanics were apparently sent out to look for it in the gravel trap.

"Surgery to repair damage to Jorge Lorenzo's finger in Melbourne has been successful. The surgeon was able to save the nerves and tendons of the injured fourth finger, as a result no functionality will be lost in either the finger or the hand," said a team spokesman.

"Unfortunately an extended recovery time will be required so Jorge will not race in Sepang for the Malaysian Grand Prix. A decision on the Valencia Grand Prix will be made dependent on Jorge's condition after his return to Barcelona."