Chiefs assistant rugby coach Andrew Strawbridge remains in a critical condition in Waikato Hospital
Strawbridge, who is also a Manu Samoa technical advisor, became sick on a flight to Samoa on Tuesday.
He was admitted to an Apia hospital on Wednesday with an infection in his right eye.
His condition rapidly deteriorated and he was transported back to New Zealand from Apia by air ambulance.
A statement from the Chiefs said medical specialists have been working closely with intensive care staff to help the 50 year old.
Strawbridge was in Samoa to assist the team as they prepared to host the All Blacks in a one-off test on Wednesday.
His wife, Laura Strawbridge, and family have expressed their thanks to rugby fans for their support.