Witnesses found him bleeding and suffering serious head injuries.
The car stopped briefly but fled the scene without offering help to the injured man, police said.
One witness told 9News he event attempted to stop the driver, calling for him to please stop .
The 31-year-old was taken to St George Hospital and remains in a critical but stable condition.
Man left bleeding on roadside after hit and run in Narwee, Sydney.(9News)
A crime scene was established and inquiries have begun.
Police are now appealing for the driver of a dark coloured vehicle involved in the incident last seen travelling on Grove Avenue to come forward.
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