Montmelo - McLaren chairman Ron Dennis says Fernando Alonso is "devoid of injury" following his crash in preseason testing.
Dennis, however, says it is still too early to guarantee the Spaniard will be ready to start the season at the Australian Grand Prix on March 15.
Alonso is missing the final preseason test after he crashed on Sunday at the Barcelona-Catalunya circuit.
He spent three days in the hospital before going home to recover.
Dennis says Alonso "wants to drive and test, but the doctors said 'if you want him to go to Australia it's best to rest him.'"
Dennis says he contacted racing's governing body to initiate the investigation into the accident. He adds that data retrieved from the car has ruled out a malfunction.