Jorge Lorenzo arrived for the inaugural Thai MotoGP unsure if he would be fit to race due to a dislocated big toe and compound fracture of the second metatarsal at Aragon.

The triple MotoGP champion got a definitive answer of the worst kind when a technical problem caused a massive Friday highside that not only aggravated those right-foot injuries but caused a hairline fracture to his left wrist.

It is the wrist injury - only discovered late on Friday - that prompted Lorenzo to withdraw from the Buriram round and remains a major concern for the upcoming Japanese Grand Prix, on October 19-21.