"We want to do the right thing by the horse and look after him. He had eye surgery in Sydney and then he contracted a bout of pneumonia which pretty much undid all the hard work by the surgeons.
"We brought him home and gave him a good long spell and a chance to recuperate, but unfortunately he just hasn't recovered well enough to be seen on a race track again.
"His best could still have been in front of him and it's disappointing for such a wonderful group of owners that were involved in him, as well as the stable and all the staff.
"It's also sad for the Hollinshead family that bred him. They also got enormous satisfaction out of watching him race at the elite level. He was such an exciting and explosive galloper."
Earlier this year, the gelding secured his first Group 1 victory in the BCD Group Sprint (1400m) at Te Rapa before quickly adding to his elite-level tally when taking out the Group 1 Chipping Norton Stakes (1600m) at Randwick.
Te Akau Shark, whose owners included rugby league legend Paul Gallen, won seven of his 14 starts, and placed in five others, accruing more than A$1.5 million in prizemoney.
He was purchased by Te Akau principal David Ellis out of Lyndhurt Farm's 2016 New Zealand Bloodstock Ready To Run Sale draft for $230,000.
The star galloper will now enjoy retirement at Te Akau Stud alongside another famous Group 1-winning chestnut, Gingernuts.
- NZ Racing Desk