Nathan Bracken seeking at least Aus$1.0 million (US$1.07 million) in lost earnings.

Former Test seamer Nathan Bracken is suing Cricket Australia, alleging negligence for failing to adequately deal with a knee injury that "ruined" his career, reports said on Thursday.

Bracken, who played five Tests and 116 one-day internationals for Australia, is arguing that Cricket Australia s doctors and lead physiotherapist cannot provide "competent" medical advice to elite athletes.

News Limited newspapers said he was seeking at least Aus$1.0 million (US$1.07 million) in lost earnings.

He says Cricket Australia failed to "investigate, diagnose and treat" a right knee injury suffered the day before a one-day match against England in January 2007.

In his statement of claim, Bracken reportedly states that two doctors and a physiotherapist working for Cricket Australia should have recognised from MRI scans that he needed to have arthroscopic surgery.

He alleges their failure to refer him for further examination by a specialist orthopaedic surgeon and to restrict him from training and playing ruined his career.

Cricket Australia confirmed legal action was under way but said it could not comment.

"It s before the courts and we cannot comment on it," a spokesman told AFP.

As well as appearing for his country, Bracken played for New South Wales and English county Gloucestershire before announcing his retirement last month aged 34.