Sete Gibernau has been flown to Barcelona for surgery after fracturing his collarbone in two places in a practice crash at Le Mans this morning.
The Spaniard suffered a violent high-side during the wet part of the morning practice session.
The injury is the third that Gibernau has suffered to his collarbone, and lingering discomfort from the old injuries in the area had already forced him to miss some of pre-season testing.
Gibernau had returned to MotoGP for 2009 with the new Francisco Hernando Ducati team, having been away from the sport for two years. He has struggled to get up to speed so far and has yet to finish in the top ten since rejoining the field.