Leon Haslam has become the latest rider to suffer an injury during World Superbike Championship testing at Phillip Island, just days before the start of the season.

Dropping his BMW in the high-speed final left-hander, Haslam fell in the run-off and was taken to hospital when he wasn't immediately able to stand up.

Subsequent x-rays reveal he has fractured a bone in his heel, an injury that ruled him out of the second test session of day around the Australian circuit.

However, Haslam has since gone on to suggest, via Twitter, that the injury could be more severe than initially feared, adding that he may require surgery.

"Not a good day - big high-side at the last turn. Still in hospital waiting to see when they can operate. May need a screw in the tibia."

Haslam's injury comes after John Hopkins, Eugene Laverty and David Salom all suffered fractured hands in crashes during testing at Phillip Island a week ago.