Kim Clijsters' injury in Brisbane has been diagnosed as a thigh muscle spasm  and she should be able to play the Australian Open, her coach, Carl Maes, told The Age. Defending champion Clijsters retired down 7-6 (4), 1-3 against Daniela Hantuchova in the Brisbane semifinals. ''Kim will be resting for a few days and get intensive treatment" and her Australian Open appearance ''should not be in danger at the moment," Maes said. Clijsters is scheduled for another check-up on Wednesday.