Former MotoGP world champion Nicky Hayden died in hospital on Monday at the age of 35.
His death comes five days after he was hit by a car while training on his bicycle.
Maurizio Bufalini Hospital in Cesena, where Hayden had been since the collision last Wednesday, made the announcement.
“The medical team has verified the death of the patient Nicholas Patrick Hayden, who has been undergoing care since last Wednesday May 17 in the intensive care unit of the Bufalini Hospital in Cesena following a very serious polytrauma which occurred the same day,” the hospital statement said.
Hayden had severe cerebral damage and multiple traumatic injuries.
Tributes are pouring in for the late champion from all quarters.
We will update you tomorrow.