Joe Calzaghe plans to bring the curtain down on his glittering career after his 8 November fight against American Roy Jones Jr at Madison Square Garden.
Welshman Calzaghe, who has a 45-0 record including 32 knockouts, will take on Jones for The Ring magazine's light-heavyweight crown.
'It is probably going to be my last fight,' the former super-middleweight and light-heavyweight champion said. 'I've been fighting for 25 years and I just don't feel like fighting any more.
'Physically, I feel as good as I did four or five years ago. Mentally, it's harder to get motivated for a fight. That's why I only wanted the big fights to finish my career.'
Calzaghe, 36, first donned a pair of boxing gloves in 1983 before turning professional a decade later. He would dearly love to end his professional career with an unbeaten record.
'It's very, very important to me to retire undefeated,' he said. 'To face a great former champion at such a great arena, it's a fairytale come true.'
Jones, 39, is an eight-time former world champion in four weight classes with a 52-4 record including 38 stoppages. For much of his career, he was regarded as the greatest pound-for-pound fighter in the world.
Three consecutive defeats in 2004 and 2005 - two of them by knockout - diminished his stature but Jones has since claimed three more victories, including a unanimous decision over Felix Trinidad in his last bout in January.
Calzaghe has the utmost respect for his opponent.
'Roy Jones is still Roy Jones,' he said. 'He's a legend. He's still got speed, he's still got power. I'm happy to be fighting somebody with as big a name as him.'
In his most recent outing, Calzaghe recovered from a first-round knockdown to beat another American, Bernard Hopkins, by split decision in Las Vegas in April.
Although the Welshman received criticism for struggling against a 43-year-old considered to be past his peak, his performance was put into perspective by Hopkins in Atlantic City on Saturday.
Former world champion Hopkins defied his age by upsetting 26-year-old middleweight champion Kelly Pavlik in a one-sided fight.
Against Jones, however, Calzaghe predicts a much more entertaining bout.
'Styles make fights,' he said. 'Hopkins is very defensive, and I knew I had to force the fight. If I hadn't come forward, there wouldn't have been a fight. But Roy Jones is a showman.'
