David Tua has announced his decision to retire from boxing after losing a unanimous points decision to giant Belarusian Alexander Ustinov in Hamilton tonight.
Speaking at the Claudelands Arena in Hamilton Tua, 40, said: "I actually got myself into great shape, because I believed I could do this and I believed that the fire still burns.
"But sad to say, my heart's not in it any more – it's time for me to try something else. There will be two people at home right now who will be happy with this decision – my mum and dad.
"That's it for David Tua. I'd like to thank the public of New Zealand for their support [received applause] and the people of the Pacific – your support has been absolutely 'O for Orsome' from Day One.
"David Tua left the building tonight. Thank you very much and God bless."
Tua's 21-year career began in December 1992 and soon became respected for having one of the most devastating left hooks in world boxing.
After nine years and in 2001 Tua was named as the 48th greatest puncher of all time by Ring Magazine.
Tua met Lennox Lewis in November 2000 in which he was described as the number one IBF and WBC contender and earned $3.5 million.
He finishes his career with a record of 52 wins (43 knockouts), five losses and two draws.