PERTH, Australia — WBA light heavyweight world champion Danny Green quit boxing Tuesday, saying he wanted to protect his health and spend more time with his family.

The 35-year-old Green (25-3 with 22 knockouts) had been preparing in Sydney for a mandatory defense of his WBA title against Argentina's Hugo Garay on April 27.

"I am getting out on my terms, with my dignity and respect intact," Green said. "I have made the decision of an intelligent man — looking to 25 years in the future."

Green turned professional in 2001 after coming to prominence at the Sydney 2000 Olympics and won his first 16 bouts before a fifth-round disqualification against Germany's Markus Beyer in a WBC world title challenge in August 2003.

Green won the WBC interim super middleweight belt with a sixth-round stoppage of Canadian Eric Lucas four months later, before a second loss — this time on points — to Beyer in March 2005.

A long-anticipated bout with fellow Australian Anthony Mundine resulted in a unanimous points decision against Green in front of 30,000 spectators at Sydney in May 2006.

Green moved up to the light heavyweight division and won the WBA world title with a convincing win over Croatia's Stipe Drews in his hometown of Perth, Western Australia, last December.