Wladimir Klitschko insists he has made the necessary "upgrades" to help him defeat Anthony Joshua in their Wembley showdown.
The 41-year-old (64-4 KO53) will make his return to the ring following a 17-month absence when he takes on the unbeaten IBF champion (18-0 KO18) in front of 90,000 fans at Wembley Stadium on April 29, live on Sky Sports Box Office, with the vacant WBA 'super' belt also on the line.
Klitschko is currently training in Austria and will become the second oldest fighter to win the world heavyweight championship if he's successful in London.
"There's so many things, even at this stage of my career, that is being upgraded. So, it's getting better and more exciting," the former two-time world heavyweight champion told Sky Sports News HQ.
"I am happy about it and I am very fortunate. I've been working for it for a long time and things happen for a reason. I am happy about having AJ as my opponent because AJ needs me and I need AJ to make this event happen.
"It's simple as this, I just want to win my next fight and to show to myself that I can do it. I know that I can do it.
"I have been doing it for such a long, long time, so the end of the fight is going to be, and I'm focused on this, positive for me where I am going to raise my hands and hold the titles.
"That's my passion, that's my obsession and I want to show to myself that I've still got it."
Watch Anthony Joshua vs Wladimir Klitschko from Wembley Stadium, live on Sky Sports Box Office, on Saturday, April 29.
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