Intro:

Wladimir Klitschko and Alexander Povetkin weighed in on Friday ahead of their bout in Moscow, Russia.

Script:

The IBF, WBO, IBO and WBA heavyweight titles will all be on the line when Wladimir Klitschko takes on Alexander Povetkin at the Olimpiyskiy Arena in Moscow on Saturday.

Klitschko heads into the bout on the back of a nine-year, 18-fight winning streak.

That run stretches back to his shock loss to Lamon Brewster in April 2004.

Povetkin could threaten to end Klitschko's current reign through - the Russian is unbeaten in 26 professional bouts and hasn't been knocked down in that time.

He is also a former European, world and Olympic amateur champion.

It will be a real battle of the east as the Russian take on the Ukrainian who seems untouchable in the boxing world.

Only his brother Vitali Klitschko stands in Wladimir's way of unifying all the recognised heavyweight belts and that fight is unlikely to happen.