Australian Cameron Donald is out of this weekend's Superbike race after crashing his Relentless Suzuki GSX-R1000 Superstock machine at Keppel Gate during Friday night's final practice session for the 2009 Isle of Man TT Races.

After becoming the fastest ever rider around the Isle of Man TT Circuit only 24 hours earlier with a lap of 131mph, Donald was in a positive frame of mind during his opening lap of the session session.

As he approached the Keppel Gate section of the course, the Melbourne resident missed a gear, forcing him to run wide onto the grass. Donald did his best to stay on-board but eventually crashed on the uneven surface, dislocating his left shoulder and suffering a minor back injury.

Philip Neill - Team Principal:

"After such a great night last night, when Cameron recorded his 131mph lap, we've certainly been brought down to earth with his incident tonight. Thankfully Cameron wasn't seriously injured but is obviously disappointed to be out of this year's TT.

"Bruce Anstey has also had a phenomenal practice week on his stable of GSX-R machinery and is quietly confident of adding to his TT tally. We will continue to give Bruce everything he needs, and hopefully our close-knit team can put a smile on Cameron's face with a Relentless Suzuki win."

The Dainese TT Superbike Race is supposed to start today, June 6, at 12pm, however this will be decided by the weather