Joseph O'Brien has revealed that State Of Rest has been retired to stud after Racing Victoria found an issue in an MRI scan that would prevent him travelling to Australia to defend his Cox Plate crown. The four-time Group/Grade 1 hero was last seen finishing down the field in the Prix Jacques le Marois at Deauville and the O'Brien team feel that the issue that presented itself in the MRI scan was to blame for that poor performance. State Of Rest (Ire) (Starspangledbanner {Aus}--Repose {Quiet American}) shot to prominence when...