"He will miss a race here next week and for that reason won't be fit enough to head to the New Zealand Cup (Nov 12).
"And the Miracle Mile is then basically out too.
"To be honest, I think he will need a course of treatment and I think he will end up staying here over the summer and maybe we can get back to Sydney for the Interdom in March."
I'm Themightyquinn has won three Inter Dominions but has never contested a New Zealand Cup, one of the iconic races in harness racing worldwide.
After starting his career in New Zealand he was sold to clients of Hall's stable as a three-year-old and has been a sensation since.
He has already won two Auckland Cups back in New Zealand but a New Zealand Cup win next month would have capped one of the great careers in harness racing.
Meanwhile, Canterbury pacer Christen Me remained favourite for the New Zealand Cup after beating Terror To Love in a star-studded race at Addington on Friday night.