Trainer John Thompson has reported to Racing NSW Stewards that THE GRANDSON (NZ) (race 6, no.6 at Warwick Farm on Wednesday) has undergone a tie back operation since its last start at Royal Randwick on 13th February 2017.
The horse has since trialled at Hawkesbury on 28th March 2017 and at Randwick on 24th July 2017 and 8th August 2017.