A paparazzo is suing Lindsay Lohan ... claiming he was badly injured when the car in which Lindsay was riding tried making a fast getaway from a Hollywood club and nailed him.
Grigor Balyan was taking pictures of Lindsay at the time of the accident on January 10, 2010.
Balyan's lawyer, Neil Steiner, tells TMZ ... Lindsay is being sued because her assistant was driving the car at her direction.
Steiner says his client was medically treated for orthopedic and neurologic injuries.
Steiner says he tried settling with Lindsay's insurance company but they only made "an insignificant offer." He says all he wants for his client is "reasonable compensation."
Calls to Lindsay's rep were not immediately returned.