FIVE LIVE BOXING BBC Radio Five Live Tuesday 11 April 2100-2200 BST

The Welshman beat Jeff Lacy in March to unify the WBO and IBF world titles.

"I'm not going to be one of these fighters who stays around till he's 40 - I want to get out at the top," the 34-year-old told BBC Radio Five Live.

"I want to fight for another two years. In that time I think I can achieve maybe two superfights and be a two-weight world champion."

Calzaghe's unanimous points win over American Lacy has been the defining moment of his career so far - but he wants more.

He said: "Everybody reaches a peak and there's only one peak. Maybe in years to come they'll look at my finest moment and that'll be it.

It's going to be an amazing occasion - there's never been a boxing fight at the Millennium Stadium before Joe Calzaghe

"If it is, I'll be proud. But I'm greedy and am going to be looking for an even bigger, better occasion. I'm going to be training even harder to put an even better performance on.

"I still feel I'm a young 34. As you saw in that (Lacy) fight, I'm still at my peak."

Calzaghe's next fight is scheduled for 8 July at Cardiff's Millennium Stadium, although he has not yet decided on an opponent.

"It's going to be an amazing occasion - there's never been a boxing fight at the Millennium Stadium before," he said.

"It's always been a dream of mine to fight in the Millennium Stadium and I'm finally going to get that wish."

Calzaghe said he could fight one of light heavyweight Antonio Tarver or the middleweights Ronald "Winky" Wright and Jermain Taylor - who meet in Memphis on 17 June - this year.

But he admitted such a fight was likely to take place in November rather than July.

He also said he was more keen to face the winner of the Wright-Taylor fight rather than Tarver.

"Tarver is probably the best light heavyweight in the world but is not an attractive or exciting fighter," he said.

"He's a southpaw like myself, he's tall and he's very defensive, not exciting."