BEIJING, August 14, 2008 (AFP) - Defending light-welterweight champion Manus Boonjumnong said Thursday he plans to become the first boxer in Thailand history to turn professional.

'It would be an honour for a Thai boxer to reach the top level in boxing,' said Manus, who one of Asia's' best known fighters, as much for his antics out of the ring as in.

'But I will turn professional only if the Thai Boxing Federation's president gives me the nod.'

When he outpunched Cuba's Yudel Johnson to win the light welterweight gold medal four years ago in Athens, it all went to his head.

Manus abandoned boxing to embark on a celebrity career of partying and gambling, frittering away 600,000 dollars in prize money.

His taste for the high life made him a staple of the gossip columns, damaging his reputation and straining his marriage.

But he returned to win an Asian Games gold medal in 2006, then entered a Buddhist monastery, and is now focused on more Olympic glory.

The 28-year-old said that Thai boxing chief Taweep Jantararoj had been like a father to him and that is why he wanted his blessing before taking the leap to the pro ranks.

'He is like my father, he has always been on my side and taken care of me since I was young, despite my behaviour,' he said.

'That's why I don't want to take the decision on my own. But, personally, I want to turn professional after these Games.'

Manus beat Masatsugu Kawachi in his last 16 bout here Thursday.