Wladimir Klitschko says his obsession with boxing is back, as he prepares to face Anthony Joshua in April.
The Ukrainian boxer will be facing the undefeated British boxer at the Wembley Stadium in front of 90, 000 fans.
Tyson Fury stripped Klitschko of his three world titles and his rematch fell through, but will face Joshua for the IBF title and the WBA belt.
Speaking to Johnny Nelson and Adam Smith on Sky Sports News HQ, he said: “I honestly asked myself ‘do I really like what I do?’ and I said ‘no Wlad, I actually love what I do’.
“This is one of the biggest challenges I’ve had in my life – coming back after an 18-month break and fighting a young champion, really talented, athletic and all of this.
“I’m the underdog in this fight and this is actually exciting for me. I haven’t been in this situation for such a long time. I feel young and challenged. I’m the official challenger. Great!
“I want to leave the ring as the champion and the winner of this fight – that’s my obsession. I’m obsessed about it.
“Then afterwards we can count things like being three-time world champion, the belts on the line, such a big stadium, such a great opponent, one of the rising stars…
“I’m turning my face to a challenge. Many people think I’m crazy – I’m going to be 41 and I’m fighting a guy much younger, so strong, scary, knocks everybody out.
“I’m showing my face to the challenge – I love it. I’m obsessed with what I’m doing.”
Klitschko was unable to see Tony Bellew’s shock win over his old foe David Haye – “It sounds like I missed a lot!” he said – and the former champion is not looking past Joshua.
“There is nothing beyond that,” he said. “It’s not my business right now. My business is just to get ready.”