He cuts an impressive figure, does the WBO's No. 7 ranked boxer Takeshi Inoue, the man Tszyu faces in Sydney on Wednesday night.

But "this isn't a bodybuilding contest, it's a fight".

A fight Tszyu does not have to take. The mandatory challenger for the WBO super welterweight championship, the 19-0 Sydneysider risks his shot at the crown against this Japanese rival.

"What else could I be doing? Sitting on my arse? I don't wait for opportunities, I go out and take them," Tszyu said.

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"I'm ready to take on anyone. I'll take on two world-class opponents in one night if I have to, it doesn't bother me.

"He's a stocky boy, he's a strong fella. He's going to keep coming forward so that always presents a dangerous challenge in itself. Whatever he brings, I don't really care, it doesn't bother me."

Inoue boasts a 17-1-1 record. His lone defeat in the professional ranks came against one of the world's premier pugilists in Jaime Munguia.

He vows to break Tszyu's spirit and says "towards the end I will win the match with a knockout", and Tszyu knows his opponent has the strength and power to demand respect.

"He's stocky and he keeps coming forward. It's always a tough fight when it's like that," Tszyu said.

"You could have a slick boxer, a lot of the Americans are very slick but sometimes they don't have a heat and they're easy to break down.

"These types of fighters are completely different. They keep coming forward, they get hit, they keep coming. This fight is going to be very strategic, I'm going to have to play around with my shots.

"Most of my opponents said they're going to knock me out. Once we get in the ring, it's completely different. When you're gassed, tired, you can't breathe and your mind is not thinking the same, that's when you start questioning stuff.

"He said 'take the spirit', but when your soul is taken, you can't take the spirit."

Tszyu's past three fights have ended in devastating fashion. His demolition of Stevie Spark, who jumped up two weight classes to save a card following Michael Zerafa's shock withdrawal, took three rounds.

He battered world title challenger Dennis Hogan over five. His date with New Zealander Bowyn Morgan lasted less than two minutes.

As for Inoue, he reckons he can do it in four.

"One round to read your opponent, a couple of rounds to execute. That's it. Simple," Tszyu said.

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