Last season's Champion Two-Year-Old Avantage has suffered a set-back which has seen her ruled out of the Gr.1 Gavelhouse.com New Zealand 1000 Guineas (1600m) at Riccarton next month.
The winner of six of her seven starts, including an impressive victory in the Gr.3 Gold Trail Stakes (1200m) last month, Avantage did not pull-up particularly well after the win and a decision was made to carry out a bone scan after she was examined by Te Akau's veterinarian Dr Douglas Black.
"The report of the bone scan has now been received and it identified a muscular issue which will rule her out of the Gr.1 New Zealand 1000 Guineas," Te Akau trainer Jamie Richards said.
"While this is a huge disappointment to her owners and our team, as well as all her supporters, the good news is that there is nothing more serious.
"Avantage has today travelled to a speciality equine rehabilitation facility for a five to six week period of paddock rest. We look forward to her return to the stable and the track in due course."