Invitations have been issued to 20 overseas horses in the hope of attracting them to the $3 million WS Cox Plate at Moonee Valley in October.

New Zealand-trained W.S. Cox Plate winner Ocean Park flopped to dismal 12th in the $US5 million Dubai Duty Free at Meydan on Saturday night, leaving plan for an extended overseas campaign in the UK in doubt.

There will be no shortage of opposition for Australian champion So You Think when he lines up for what is expected to be his final career start in the G1 Coral Eclispe Stakes at Sandown in the UK this weekend.