It has been confirmed a Manx Grand Prix rider was killed in an incident during last night's practice session.
Steve Osborne, 60, a newcomer from the Isle of Man, came off at Alexander Drive, just before the Quarter Bridge.
He was taken to Noble's Hospital but died from his injuries.
In a statement issued this morning, the Manx Motorcycle Club says Mr Osborne, an IT consultant with the Isle of Man Government, first competed on a home built BSA Bantam with the Formula Bantam Racing Club at Llandow in 1967 at the age of 16.
His son Stuart was a newcomer in last year’s Manx Grand Prix and Steve was a member of his support team and pit crew during last year’s meeting.
He achieved a fifth place finish in this year’s ‘Support’ race at the Pre-TT Classic on a 500cc Suzuki.
Harvey Garton, Chairman of the Manx Motor Cycle Club, says: "Steve was one of the great characters around the Manx Grand Prix paddock and was a well known figure in the local racing scene. It's a great loss to the sport and on behalf of the Club I would like to extend my deepest sympathy to his son Stuart and his friends and family".
Mr Osborne was married and his next of kin has been informed.