Michele Zasa, a doctor with MotoGP's mobile medical clinic, has revealed that Alex de Angelis is in a "critical, but stable" condition.

"It's a critical situation, but there are varying degrees within this sort of scenario and he's in good hands. We have to be patient", Zasa explained. "Right now he's in an induced coma, he's not intubated and his vital signs are stable, but we have to keep a close eye on the intracranial bleeding he's suffering to assess whether he'll need a further operation in the next 24 to 48 hours", the Italian doctor observed.

"De Angelis was given a head CT scan which came back negative, but an MRI showed that he was suffering from intracranial bleeding", the doctor revealed. "This is something that can happen when a rider hits their head and it is possible for it not to show up immediately but rather 12 or more hours later. We need to examine the extent of the bleeding together with a neurosurgeon to gauge whether or not it requires surgery", Zasa went on, adding that it could take "one, two or three days" before it becomes clear what action is necessary.

San Marino-born De Angelis was involved in a high-impact crash in practice on Saturday. Besides the damage he did to his head, he bruised a lung and fractured five vertebrae, two ribs and his left collarbone.