Caulfield Cup winner Southern Speed will not run in Saturday’s Cox Plate with connections opting to save her for the Mackinnon Stakes a week later.
The absence of Southern Speed eases the congestion slightly for the final places in the 14-horse field with 2007 Melbourne Cup winner Efficient among those on the borderline.
Epsom Handicap runner-up Pinker Pinker is another who could be refused a place as she is not a Group One winner.
The committee of the Moonee Valley Racing Club has the discretion to promote horses into the field with up to 18 final acceptances expected on Tuesday morning.
Caulfield Guineas winner Helmet continues to shade New Zealand Horse of the Year Jimmy Choux for favouritism for the $3 million race.