The 57-year-old was travelling to the set of his new TV show Catch 22 in Costa Corallina when a auto turned and struck him.
The force of the impact reportedly broke Clooney's helmet. It is set to air on Hulu in 2019. La Nuova also reports that George's wife, Amal Clooney, rushed to be by his side when she heard news of his hospitalization. La Nuova reported that Clooney and his wife left the hospital together in a private vehicle.
They claim that he injured his pelvis in the smash, but after being x-rayed was sent home.
The 57-year-old had been heading to a film set on Tuesday when his motorbike was hit by a vehicle, according to local daily La Nuova Sardegna.
Police are said to be investigating the accident.
Initial reports say his scooter collided with a auto.
NBC News reporter Claudio Lavagna tweeted: "George Clooney has already been discharged following collision between the scooter he was traveling on and a auto". While it's possible that these details are rather exaggerated, considering TMZ's history of treating rumors as facts, there have been enough reports to verify that Clooney's accident was quite serious. George suffered a broken rib and some other scrapes and bruises, while Sarah was diagnosed with a broken foot.
A spokesman for the Italian Carabinieri told the Press Association: 'At 8.15am George Clooney was riding his scooter on the State Road 125 towards Olbia from Puntaldia. "The driver decided to make an abrupt right turn and clipped George". The reported "catch" in Catch-22 is, according to The Telegraph, a USAAF rule that states a crew member "is considered unstable if he keeps on flying unsafe combat missions, but if he asks to be relieved of his duties, the act of making the request proves that he is sane and therefore must stick with the job".